Thursday, July 2, 2020

Jeep V8 Engines

Don't Ditch That AMC V-8! - The mighty AMC V-8s are unique, powerful, and worth keeping—here's how to build them right!
https://www.fourwheeler.com/how-to/engine/1905-dont-ditch-amc-v-8/

Howell EFI (works well on Jeep V8s):
 https://howellefi.com/
https://howellefi.com/product-category/general-motors/gm-tbi-products/complete-tbi-kits/universal-tbi-kits/
https://www.fourwheeler.com/how-to/engine/1912-bolt-jeep-cj-howell-fuel-injection-dui-ignition-upgrades/
https://www.4x4xplor.com/TBI-2.html

AMC 360 w/401 Crank build up:
 http://www.ifsja.org/forums/vb/showthread.php?t=141096

http://www.bulltear.com/forums/showthread.php?10019-360-Block-401-Crank
"A 401 crank in a 360 block is a good combo. It resembles the Chevy 383 set-up. But a little bigger, 385, without boring, and 390 at .030 over. But needs special made pistons or bushed pin holes in the rods.
The various overbore capabilities allow the use of many different pistons.
ie. Chevy 305 pistons fit in a 304 block to give you 311 ci. Chevy 400 pistons fit in a 360 block, and while this only gives you 367.7 ci., this combination with a 401 crank gives you a 393.4 ci. Many more combinations are available. Please note that these combos are with machine work, and are not just drop in."

"A 360 with a 401 crank and .040 overbore works out to be a 392 Stroker.
Connecting Rod Length:
360 - 5.875
401 - 5.858
Difference - 0.017 (401 being less)

I know in the 4.7L I6 Stroker you use the shorter 4.2 rods with the larger stroke of the 4.2 crank so you don't have clearance problems with the head as well as compression that is way out of sight and you use stock 4.0 pistons (you can dish them to lower compression even more). I am thinking it would be the same with the 360, use 401 Crank/Rods and standard 360 compression overbore pistons. I was told with a 4.7L Stroker that you had to use custom pistons also but never had to using the 4.2 crank/rods
Deck height:
360 - 9.208
401 - 9.208

Cylinder head volume:
360 - 5.792 cc
401 - 5.792 cc

Deck clearance:
360 - 0.012
401 - 0.002
Difference - 0.010 (401 being less)
If you take the connecting rod length difference Deck clearance becomes a .007 difference, making the Deck Clearance 0.009 closer to stock 360."

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