The Jeep 4.0 Straight Six is one of the greatest engines of all time. But that doesn't mean that it can't be improved. Newcomer Racing shows us how to put together a big power, naturally aspirated stroker 4.0 Jeep engine without spending big coin. Check out their website here:
http://www.newcomerracing.com
If you enjoyed this video, please make sure to check out our other projects with Newcomer Racing:
Modern EFI on the Jeep 4.0 doubles the horsepower while still burning pump gas! -- https://youtu.be/YWcZMjA7ZgQ
A world-record horsepower attempt with a turbocharged 4.0 stroker! -- https://youtu.be/F7o4OkKjXZc
Although not complete, here's a partial parts list. (Note: For the stock replacement components they may not be the exact same brand Newcomer Racing uses.):
Sealed Power pistons: https://amzn.to/2TVDWKE
Hydraulic lifters: https://amzn.to/37rbeF7
Valve Springs: https://amzn.to/2TSXIq5
Stamped Steel Rocker Arm Kit: https://amzn.to/2NZuEJB
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TIMESTAMPS:
0:47 - Jeep stroker recipe, blocks and cranks
1:20 - NVH Jeep block
2:10 - AMC crank choices (heavy vs lightweight crankshafts)
2:43 - Rotating assembly, stock AMC connecting rods and Sealed Power pistons
3:45 - Bullet Racing Cams camshaft installation and specs
6:08 - Hydraulic flat tappet lifter installation
6:31 - Stock AMC cylinder head build
6:50 - Ported vs unported cylinder heads
9:30 - Long block assembly
9:54 - Pushrods and rocker arms
10:56 - AMC NVH main girdle
12:00 - AMC intake and exhaust manifold installation
13:00 - Dyno testing