Billet Roller Cam Packages 4.0 4.2 Jeep AMC
$915.00
Only a few left!
Newcomer Racing "Billet Roller" Cam Package is the answer that we have all been waiting for and now we finally have a solid answer to the dreaded cast core flat tappet cam/lifter durability and supply issues.
Now let's get to the good stuff, these cams are 100% "Made in the USA" micro-polished billet cores with the industry's best high-end Morel pressure feed needle bearing hydraulic & optional solid roller Tie-bar lifters that are a drop-in unit (No machining required). That means, no more wiped/failed cam lobes that will destroy your new or classic 4.0/4.2 engine. Our lobe designs are easy on the valve train with minimal noise unlike other companies yet take full advantage of that big roller lobe design.
-We also answered any cam sync/distributor gear issues with a custom Melonized gear. This will need to be a mandatory option when ordering a billet cam, factory or aftermarket gears are not compatible.
-Next, we have a brand new designed Rollmaster billet timing set with a built in Torrington bearing to control the thrust load between the block and the rear cam timing gear, which is an 4.0/4.2 industry first.
-For 1999-2006 "Thrust Plate" style blocks this will be a direct drop-in swap with our new true double roller timing set (You can also swap from the thrust style, back to the older style without any issues by simply ordering an older style kit).
-For 1964-1998 "Non thrust plate" blocks, you will receive a new Bolt/solid pin with shims to properly set your end play (You cannot swap to a newer thrust style cam).
You will need different pushrods with the new roller lifter height difference, and we have custom 5/16" or 3/8" .080" hardened pushrods ready (5/16" for all stock style heads or unmachined pushrod tubes, 3/8" for machined pushrod tubes or Edelbrock/Hesco heads). Since there are several factors that dictate pushrod length, we will need to know if the head and block have been decked, and how much. Then what rocker arm manufacturer. Worst case scenario, simply mockup up your combo and give us a call or place an order online. During your check out, you can type any needed info in the notes section.
We have so many awesome roller cam options available that picking your favorite cam can sometimes be a daunting process. That's why we added descriptions to each cam profile to help aid in your decision.
Basic things to consider when choosing your cam:
- RPM range and where you want your powerband.
- Application (Daily Driver/Off-road/Racing/Multi-purpose)
- Weight
- Transmission (Manual or Auto)
- Gearing
- Engine Size
- Compression
- Induction/Exhaust (Stock or Modified)
- Exhaust Tone vs Engine Smoothness at idle.
Our cam grind part numbers are as follows:
HR indicates "Hydraulic Roller", MR indicates "Mechanical Roller", LL indicates "Low Lift", NSR indicates "No Springs Required", SR indicates "Springs Required" and T is for "Trust Plate".
Low Lift(LL) version cams are No Springs Required(NSR) which means you can run your stock springs but always check for coil bind. Stock spring specs are normally around 50-60lbs on the seat and 200-220 range open and good for around .460" lift.
"Springs Required(SR)" you will need to target 110-130(seat) and 275-325(open) pressures for most cams above NSR. For larger cams such as NR-130 and above, they may require more open pressure.
All of our cam spec numbers are based on a stock 1.6 rocker ratio. If you go to an upgraded 1.7 rocker ratio this will inherently raise your total lift values, so be aware when choosing for your springs max lift values.
On any of our cam kits or anyone else's for that matter, do yourself a favor and degree your cam, this will save you dividends in the end, trust us! Also, every single stock motor can benefit greatly from just a proper custom computer tune, we have done it, so we recommend custom tuning to maximize all that work and money invested to increase your usable power.
When other companies say no tuning required to get your sale, don't believe it, yes it will run, but no it will not be nearly as efficient. From the smallest cam to the biggest, the more you do to enhance the overall efficiency, from induction, exhaust or the rotating assembly on your setup, the better it will perform. This multiples and becomes more important as you go up in cam size.
***LAST THING***
THIS LISTING IS GIVING YOU THE ABILITY TO MAKE YOUR CAM PACKAGE AS NEEDED. IT DOES NOT COME WITH EVERYTHING UNLESS YOU CHOOSE IT. 'CHOOSING A CAM ONLY, WILL GIVE YOU A CAM ONLY"
*NR-119-HR-NSR(200/200 108 .425") Powerband idle-4,500rpm's This is the original High Output factory spec-based cam with a slight tweak for that factory feel, yet only better now in a long-lasting billet roller. This can be used as a drop in cam for stock style headed motors yet still leaves room on the table for an increased rocker ratio with the factory spring setup. "High Output"
*NR-120LL-HR-NSR(208/212 112 .425"/.425") Powerband Idle-5,000rpm's with a deep smooth idle quality, great stock cam replacement upgrade that works with a stock stall converter and all stock components that can make great small quick spooling turbo or supercharger cam. This is our "Low lift" version option for a drop-in cam upgrade while still retaining stock springs to avoid spring pocket clearance machining and yet still allowing room for a 1.7 roller rocker upgrade. "Mr. Smooth-Low Lift"
NR-120-HR-SR(208/212 112 .480"/.507") Powerband Idle-5,000rpm's with a deep smooth idle quality, great stock cam replacement upgrade that works with a stock stall converter and all stock components that can make great small quick spooling turbo or supercharger cam. "Mr. Smooth"
*NR-121LL-HR-NSR (212/216 110 .425"/.425") Powerband 1,200-5,500rpm's with a noticeable deep idle quality, the most aggressive cam we recommend using with stock springs. Works well with all stock vehicle components, with upgrades just keeps showing gains. This is our "Low lift" version option for a drop-in cam upgrade while still retaining stock springs to avoid spring pocket clearance machining and yet still allowing room for a 1.7 roller rocker upgrade. "300HP-Low Lift"
NR-121-HR-SR (212/216 110 .507"/.507") Powerband 1,200-5,500rpm's with a noticeable deep idle quality, the most aggressive cam we recommend using with stock springs. Works well with all stock vehicle components, with upgrades just keeps showing gains. "300HP"
NR-122-HR-SR (212/222 114 .507"/.544") Powerband 1,400-6,000rpm's with a noticeable deep idle quality, this is the first step up the ladder that requires a spring with more lift capabilities. This makes a great entry level cam combo with our competition head for those who want to utilize added lift, with our 1.7 roller rockers you will net .557"/.574", works with stock stall converter. "Lightning".
NR-123-HR-SR (212/208 112 .507"/.480") Powerband 1,200-5,400rpm's this is the weird cam profile of the bunch but don't let that fool you this little guy works awesome with a wide power band. This profile works well on any application and gives plenty of intake cylinder filling with the added duration. Stock short block or lower compression for low octane usage this is your cam. Works well with stock stall, increased lift springs required. "Odd Ball"
NR-124-HR-SR (212/212 113 .507"/.507") Powerband 1,200-5,600rpm's this little guy is a great all-around cam for naturally aspirated or forced induction combos. We have tested this one extensively in the "Mutt" 4.0 motor on the engine dyno (326hp/343tq on boost 550whp/600whp), on street, towing and racing. At a stock idle this cam will have a slight deep lope, increased spring rate and added clearance required. Works with stock stall converter. "Mutt"
NR-125-HR-SR (216/224 112 .507"/.544") Powerband 1,500-5,900rpm's this one will have a slight aggressive lope at stock idle. Now you're starting to get up in the cam area where induction and exhaust upgrades will start to become options to utilize the benefits of this cam. We have run this cam profile for 15+ years and made killer power numbers in daily drivers to all out-race rigs. This is a great starter in the aggressive cams yet yields great driving manners and yet you can twist that tach to 6,000 rpms. Still works with a stock stall, but with a 2,000-2,400 stall you will benefit. "Old Faithful"
NR-126-HR-SR (220/226 112 .544"/.544") Powerband 1,600-6,200rpm's now we are getting somewhere. This cam needs head, induction and exhaust upgrades to serve it well with more compression or forced induction this thing rips. We have made well over 400+hp with this cam with a built stroker. This one lopes without a doubt and with a 1.7 rocker it pumps out .578"/.578" lift. "Bump and Grind"
NR-127-HR-SR (228/228 113 .544"/.544") Powerband 1,900-6,200rpm's this mid-sized powerhouse single pattern cam will make some noise, the good kind. An all-around great performance cam for NA and boosted applications. Get your build on point to reap the benefits or simply throw the boost at it for an aggressive daily driver and set that idle to 750rpm's. "Boosted"
NR-128-HR-SR (228/232 110 .544"/.544") Powerband 2,000-6,200rpm's if you want to get noticed or hated this is your cam. With surprisingly great driving manners this cam with turn heads at the stop light with a healthy lopey idle quality. This one will need all the induction upgrades along with a 2,500 stall, manuals let it rip! Have your build with induction and exhaust upgrades on point and raise that idle to 800rpm's. "350HP"
NR-129-HR (234/234 113 .544"/544"). Powerband 2,400-6,400rpm's dual purpose single pattern powerhouse. If you want that aggressive chop at idle with your NA build or forced induction, this one fits the bill. For forced induction cam this top of the ladder for a daily driver/street machine. "Maniac"
NR-130-HR-SR (236/244 110 .586"/.586") Powerband 2,600-6,400rpm's now business is picking up. This can be a street/race cam with a very healthy lopey idle, no mistaking this bad boy is made to be seen. Stock idle will need to be raised to at least 800rpm's for a nice crisp pop out the tail pipe. With a 1.7 roller rocker this one hits .574"/.598" on lift, 2,600-3,000 stall required. "Street Terror"
NR-131-HR-SR (244/252 108 .586"/.586") Powerband 3,000-6,600rpm's talk about a noise maker this one fits the bill, straight up race or hard core street machine if you dare. If you have never heard a built inline with a nasty cam trust us they sound amazing, similar to a BBC if using a 6 to 1 header. This one is made for naturally aspirated applications where compression will be your friend. 3,000 stall required, or sticks, grab a good clutch and give it hell. "McNasty"
NR-132-MR-SR (264/272 106 .586"/.586") Powerband 3,600-7,200rpm's all out race only here unless you want to be a total badass on the street. This one needs compression, flow and some great parts so this thing can spin to 7,000+rpm's. A Jeep/AMC motor changes tones around 6,000 rpm's, the kinda tone that makes the hair stand up on your neck. Well, this one goes way past that point so hold on to your seat. With all the supporting mods this cam will make 500hp NA and make people cringe at the wicked snap crackle pop sound. Make sure you run a fully counter weighted crank at these rpm's. "Widow Maker"
**VERY IMPORTANT**
We have discovered through testing that these roller lifters require the preload to be set between .010"-.030". Setting this by pushrod length is nearly impossible on every cylinder. We highly advise moving to an adjustable roller rocker arm for ease. In doing so, you will need a taller valve cover(We have a billet version) or our billet valve cover spacer kit for added clearance, then our billet thermostat housing to clear the raised valve cover(Most people opt for the matching perimeter valve cover retainers). We have more Lightweight rocker arms kits on the way as well.
***Tech tip for customers wanting to go with a more aggressive camshaft. To run a larger style camshaft that will turn over 5,500 rpm's you will absolutely need a harmonic balancer. Our ATI balancer will become a key component to achieve harmonic control of your in-liner. If you do not address this area it will absolutely create problems in trying to run higher rpm's.
"Wide Lobe" OEM Hydraulic Flat Tappet Cam & "Optional" Lifter Package
$368.00
$348.00
Only a few left!
For the first time we are offering, OEM "Wide Lobe" hydraulic flat tappet cams and optional items such as: Johnson lifters, Rollmaster billet adjustable timing set options, bolt/spring/washer/pin kit (Spring loaded & Solid options), with ACL cam bearings (Highly, Highly Recommended).
These are OEM cores with the highly desirable wide lobe to handle more load, wear and tear unlike new inferior cores. We only have a small batch of these cams available and once they are gone we may never have anymore, at this point. They are available in the standard 4.2/4.0 flat tappet (non-thrust) or the newer stepped nose (Thrust style) design. If you are converting from a new style to an old-style cam, you will need: Cam/timing set/Cam bolt/pin/spring kit.
We have three available "Drop-in" cam options in "Thrust" and "Non-Thrust":
"HO" 202/202 108 .437"/.437"
"Mr. Smooth" 207/211 110 .459"/.461"
"300HP" 212/216 110 .461"/.461"
All of these cams will work with stock heads and valve train.
*** "Always check for coil bind clearance during your install"
NR-122 Hyd Flat Tappet 213/217 112 .480"/.494" "Old Stock"
$610.00
$540.00
Only a few left!
Here's a rare one, a new old stock Micro-polished NR-122 hyd flat tappet with Johnson lifters.
Howards 203/[email protected] 110 .443"/.448" Cam and Race Hyd. Lifter Kit(Old Stock)
$610.00
$540.00
Only a few left!
We have only two available of these Howards "Old Stock" Hydraulic cam and race lifter kits. If your looking for a good hydraulic cam setup, this would fit the bill with a Pre-Covid, good quality product!
***This listing price is for one cam and lifter kit.
4.0 Jeep/AMC CNC 100% Billet Valve Cover
$1,495.00
$1,250.00
After many years in the works, we have finally produced an all-new design Jeep 4.0 CNC 100% Billet Valve Cover. This cover has tons of innovation all wrapped up in an extremely nice CNC billet package.
We used the same encapsulated valve cover base gasket design from our Billet Valve Cover Spacer to create the ultimate cover. This billet valve cover is actually 1/2" shorter than the valve cover spacer/factory valve cover setup to help with hood clearance. We achieve this through our one-of-a-kind evaporative/breather tube design system which eliminates the need for a splash shield. Our system uses screw-in o-ringed tubes. These tubes house a clip in breather setup or an orficed tube with #8 ORB O-ring fittings for your choice of push-lock style hose or AN fittings on the top side.
This cover gives plenty of room from every aspect for larger adjustable roller rocker arms, to larger springs and retainers. The thick billet perimeter gives you the confidence when you go to tighten your VC down and to not worry about cracking or breaking. This cover is designed for the newer style rubber gasket for leak-free use, which is also included. The over-sized billet fill cap is o-ringed and offered in a front fill or center fill valve cover design. We will be offering different design options in the near future. For now, the cap in the picture is the only option available.
You can setup this cover to run the OEM style push-on 1/2" breather to air box with an orficed rear to the intake. Or, Breather both to the air box, to eliminate that nasty oil in the intake manifold like the OEM style. OR, use two #8 AN fittings to an air intake or catch can setup to control blow-by for that boosted application.
The evaporative/breather system style is a choice for you to make at checkout, along with your bolt style(Studs or Button head SS bolts), Raw/Clear Anodized/Black Anodized finish, front fill or center fill. If you order a coating option other than RAW, that will take an extra week to get coated before we can ship. This is our first batch, and we are simply trying to give our customers the opportunity to purchase, so bare with us while we get our production procedure in place. More pictures to follow!!!
Jeep/AMC OEM Rubber Valve Cover Gasket(Black) 1996-2006
$38.00
$32.00
(1) 4.0 Jeep 1996-2006 OEM black rubber valve cover gasket w/perimeter grommets.
Billet Valve Cover Spacer Kit(Raw or Black out)
$475.00 - $495.00
This is the most advanced and complete Billet Valve Cover/Roller Rocker Spacer to date. This spacer kit has a proprietary designed doweled/interlocking system to keep everything aligned for proper fitment, sealing and to squeeze in those big 1.6 or 1.7 Adjustable Roller Rocker Arms. This kit is designed retain the factory valve cover and its excellent breather/baffling system which most aftermarket covers DO NOT HAVE. Items included in this kit are the following: 5/8" Billet valve cover spacer(96-06 style valve cover), locating receiver dowels(96-06 12pt head bolts suggested not required), two black usable locating rubber valve cover gaskets, valve cover perimeter grommets, valve cover breather and PCV fittings w/grommets, Stainless Steel button head perimeter bolts or Stainless Studs w/Nylock nuts and AN washers to finish off everything so there's no rusty crusty looking mess down the road. Your choices will be "Raw or Black Out"
Jeep AMC 4.0 4.2 Revised Billet Aluminum Thermostat Housing 1971-2006
$235.00 - $245.00
Is it time for a new thermostat housing due to pitting, breakage, leaks, maybe after you add that new valve cover or spacer kit for those new roller rocker arms and now the thermostat housing hits or you just want the best damn housing on the market period then this one is for you. We have totally redesigned the AMC Jeep thermostat housing correctly with corrected outlet angles and solid billet aluminum construction that fits all years 1971-2006. We offer this housing in Raw or Black Anodized.
CNC Port Matched 70mm Jeep 4.0 Intake Manifolds(Stock Castings)
$680.00 - $860.00
Only a few left!
We brought them back, that's right we now carry "CNC" Port matched Jeep 4.0 Stock Casting Intake Manifolds in all styles. If you are looking for that added kick in the seat of the pants this is an easy upgrade. Whether it's a stock 4.0 or a big stroker these manifolds will add hp and tq across the board with killer throttle response.
All manifolds are cleaned, blasted, resurfaced, bored and CNC machine gasket matched to our Copper intake/exhaust manifold gasket. The runners have been greatly opened up from the very restrictive factory injector bung area and the throttle body opening has been machined to 70mm if you decide to upgrade to an oversize throttle body. We now carry custom 70mm throttle bodies in Silver and Black.
You can simply choose your current year intake manifold or mix it up depending on where you want your power delivered. Make sure when choosing a manifold to select either your current year or the matching power steering mount pattern/style.
How to choose your manifold: The early Straight Runner Manifolds make great mid-range and top end power (Stockers or Strokers with a slightly aggressive cam will benefit in the upper power band). The later Curved Intake Manifolds absolutely make more power off idle for you low end to mid-range power lovers with those long runners and big plenum (Small cu in or small cam lower rpm seekers this is your intake).
If you are retrofitting an older straight runner to a newer curved style you will need to choose the "99-04 Curved w/o harness bosses.
**While supplies last we are offering our in house 60mm Taper Bore Throttle Bodies as an option, these work great on stock motor upgrades or low to mid rpm response.
***CORE REQUIRED, if you do not have a usable core of the same intake manifold as you purchased then you will have to choose and pay the associated core charge at checkout. If you do have a usable core then simply ship it back in the same box as delivered. You will be responsible for shipping charges.
****As of 01/09/24 we have added High Temp Cerakote coated intake manifolds to the options list. We have used this coating now for a few years on intakes, headers, etc with great success. This coating is good to 1,800 degrees and is currently available in Black or Silver to match our 70mm throttle bodies.
"Black-out" or "Quick-Silver" Induction Package 96-04 4.0 Ported Intake Manifold & Taper Bored 60mm Throttle Body.
$1,100.00
Only a few left!
We have created both a "Black-out" and a "Quick-Silver" induction package consisting of a ported 96-04 intake manifold w/o harness bosses and matching 60mm tapered throttle body that are both high temp Cerakoted. .
This combo can be used on anything from a stock 4.0 to a stroker. The smaller 60mm throttle body vs the larger throttle bodies work extremely well as a bolt on with great low end throttle response and drivability. If at some point you decide you want to go for the big 70mm throttle body we have you covered. These intakes already have the throttle body openings milled out to 70mm for just that reason.
*These packages are on a two week backorder once you place your order as of 05/01/25.
**Since we have added both these product lines, a core charge will be applied on the throttle body and intake manifold, unless you return your core.
***For returns, simply use the shipping box and return it to the address it was sent from(Newcomer Racing).
Sheet Metal Plenum 70mm Intake Manifold
$1,500.00
Sold out
Our sheet metal intake manifolds are based off 96-98 straight runner intakes. We remove the factory plenum, completely port intake runner to max capacity all the way through, fabricate and weld a larger sheet metal plenum, mill the intake flange flat and enlarge the throttle body opening to 70mm.
We have ran these on many different engine packages with great success over the years. To see the potential in this style intake you will need: a higher revving 4.0(Ported head/big cam)or a Stroker(Ported head/Cam), a ported head is a must to utilize the added airflow capabilities.
With the addition of this intake on a built Stroker with increased rpm potential, you will have potential huge gains in power(30-80hp) from the 3,000-7,000 range. On a big inch 4.8-5.0 Stroker that has good head potential with a smallish cam these work great from idle through the 6,000 rpm range and with a larger cam they just make more power.
These intakes only fit 96-06 or simply add the newer style power steering mounts to any older version then you can run this style intake. We recommend a 24lb minimum injector size, in most cases a 36-48lb injector will be required for NA builds.
When ordering you will need to provide a good salvageable 96-98 core, if not then you will need to pay the core charge. We have based the core procedure off "Good faith" on the customer part.
***These intakes are currently on a three week backlog once your order is placed as of: 04/01/25
70mm "Wide Mouth" Throttle Body
$365.00 - $545.00
Only a few left!
The all new 70mm "Wide mouth" throttle bodies are here and ready to add some needed air to your power plant. We have always had positive dyno gains with these throttle bodies on anything from stock to a maxed out stroker.
If you compliment this throttle body with one of our Ported 70mm intake manifolds, either in the stock casting form or the sheet metal plenum you will see huge gains in air flow and power potential.
Otherwise, to utilize these big throttle bodies, your stock intake manifold opening(62mm) will need to be machined to accept the oversized(70mm) opening.
70mm throttle bodies are available in "Black" or "Silver" and will include: All new stainless steel hex head hardware, vacuum cap and a matching 70mm gasket. Simply swap over your current MAP, IAC and TPS sensors.
***In stock and ready to ship***