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.
On Sale
On Sale
Jeep 4.0 AMC 4.2 "Lightweight" Roller Rocker Arm Kits(1.60/1.70, Fixed & Adjustable)
$540.00 - $670.00
Only a few left!
If you want dyno proven hp & tq gains then here's one of the easiest ways to add 5hp/10ftlbs(1.60) or 10hp/15ftlbs(1.70). This is our next generation, available in Black and Tumble finish, with even lighter weight, yet heavy duty, available in both 1.60 and 1.70 ratios fixed and "adjustable" roller rocker arm kits. These are 100% made in the USA and feature a heavy duty fully rollerized fulcrum and lightweight roller tip. We just added a 1.80 ratio option(Cylinder head pushrod tube area grinding required).
*3/8" .080" wall pushrods can only be used only on our competition heads or Edelbrock heads, unless you clearance your head accordingly. Possibly on fixed roller rocker arm kits and especially on adjustable kits you will have to space the valve cover up at least 1/2' for clearance from the added height of the over-sized rocker arms. We offer one of the best solutions for this issue with our 5/8" Billet Valve Cover Spacer Kit which is also listed on our site.
**Tech tip**
The factory rocker arm ratio is 1.60. Keep in mind when ordering your desired rocker arm kit that lift will be increased by going to a 1.70 ratio. Make sure your total lift value is not greater than your valve spring can handle(Coil bind).
On Sale
On Sale
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.
Jeep 4.0 Valve Cover Perimeter Grommet 7075 Billet Retainer Set(15 piece Raw or Black Out).
$150.00 - $160.00
Jeep made a great simple sheet metal valve cover design that does exactly what it is supposed to do which is: Not leak, Control oil splatter, Proper PCV control without excess oil consumption and acceptable looks. Mopar stopped making these retainers over 10 years ago so we answered another call and made them look even better! Our new 7075 Aircraft Aluminum Retainers are super lightweight, fit even better than factory and can be polished to a mirror finish or choose the Black Out version. These will work directly with our valve cover spacer/stud/bolt kit and our billet thermostat housing to clear that added height. ***Note*** This set will include (15) Machined Billet Retainers in your choice of "Raw or Black Out"
1964-1998 Rollmaster Billet IWIS Seamless True Double RollerTiming Set
$187.00 - $217.00
Only a few left!
Rollmaster Billet Seamless IWIS double roller timing set, will fit all older 199-258 6 cyl. and 2.5 4 cyl. versions with the spring/pin thrust setup.
***Always check your chain to timing cover clearance and always use the factory oil slinger.
On Sale
On Sale
1999-2006 "Thrust Plate Style" Billet Adjustable Timing Set Seamless IWIS Double Roller Timing Set
$217.00
$207.00
1999-2006 "Thrust Plate Style" Billet Double Roller Adjustable timing set, this was a collaboration with Engine Pro. We worked hard to get the design and weight cut down by 1.5lbs to the factory weight, yet WAY stronger and longer lasting. We even went a step further and added a seamless IWIS chain.
***Always check timing chain to front cover clearance and always utilize your oil slinger.
On Sale
On Sale
"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"
On Sale
On Sale
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.
On Sale
On Sale
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.