Custom Jeep/AMC Stroker Engines (4.0~4.8)
*** Current engine build backlog as of 03/01/21 is 2-3 months depending on engine package***
The "300HP" 4.6/4.7 Jeep/AMC "Stroker" inline 6 cyl engine package.
The "300HP" is our entry level engine package and they normally make between 290-320hp/320-340tq with an excellent power band from idle to redline. All of our engine packages are custom hand built to spec, work well both Fuel injected or Carbureted. These engines are all upgradable with additional available options from below.***Recommendations for upgrades- Walbro 255 fuel pump, 24-36lb injectors, upgraded header w/2.5" collector and exhaust minimum!, intake porting, bigger throttle body, upgraded radiator, upgraded motor mounts(Drivers side mount that bolts on the block MUST have increased bolt count over the factory three bolts to keep from breaking block from added power, passenger can stay stock), cold air intake and last once everything is upgraded have it properly custom tuned then everything and everyone is happy. Every motor is dynoed with a video and power numbers,12 month/12,000 mile warranty and complimentary Newcomer racing T or Sweat shirt w/hat. All engines will be shipped bare unless our custom high quality monotone paint option is applied from the options list.
The "Torque Monster" for those who want it all without sacrificing any that bottom end grunt!
The "Torque Monster" has quickly became our best seller. It offers killer bottom end and midrange power with out killing the top end power thanks to our Competition Cylinder Head upgrade. When you still want great driveability and road manners with that all around awesome power band this is your build with a power band from Idle to 5500rpm's with a slightly noticeable idle. This package will include a lightweight crank for those quick revs, Resized short rods w/ARP bolts, main girdle, baffled oil pan, billet timing set, micro-polished custom cam and lifters, long lasting quiet hypereutectic pistons w/lightweight rings for low drag, long life performance, 9.7:1 compression set with proper quench set for a pump gas friendly combo, full roller rocker arm setup with custom HD pushrods, our custom valve cover spacer package with a factory valve cover for proper fit and evaporative functions. We spray every build with the customer chosen paint color or in stock colors. We recommend the following supporting mods: Intake manifold port match, Throttle body boring and taper porting, Header, 24lb injectors, Cold air intake, 2.5" minimum exhaust tubing, Upgraded Clutch(Mcleod/Centerforce), Automatic upgrades depending on style(Stock converters work well on all), Custom tuning(Even on stock vehicles there's always gains), We ONLY RECOMMEND "Flyin Ryan Tuning" or in house tunes on builds. These builds will include a 12 month/12,000 miles warranty, every single motor is dyno proven with a video and power numbers, a complimentary T or Sweat shirt w/hat. All engines will be shipped bare unless our custom high quality monotone paint option is applied from the options list.
The "350HP" is the next step up the ladder to more performance out of your 4.0 based Jeep/AMC motor. This combo features a more aggressive cam profile to give that "Lopey/Rowdy" idle quality with a redline of 6,000 rpm's.
The "350HP" features the following upgrades from its "300HP" counter part: Baffled oil pan Competition cylinder head, Full roller rockers(Adj) w/required Billet valve cover spacer kit, HD 3/8" .080" wall custom length pushrods, and a more aggressive cam profile to give a really strong mid range and top end all the way to 6,000rpm's without sacrificing to much bottom end power. ***Recommendations for upgrades- Walbro 255 fuel pump, 24-36lb injectors, upgraded header w/2.5" collector and exhaust minimum!, intake porting, bigger throttle body, upgraded radiator, upgraded motor mounts(Drivers side mount that bolts on the block MUST have increased bolt count over the factory three bolts to keep from breaking block from added power, passenger can stay stock), cold air intake and last once everything is upgraded have it properly custom tuned then everything and everyone is happy. Every motor is dynoed with a video and power numbers,12 month/12,000 mile warranty and complimentary Newcomer racing T or Sweat shirt w/hat. All engines will be shipped bare unless paint our custom high quality monotone paint option is applied from the options list.
