The last time I built an AMC 401 was close to 30 yrs ago but man it was an awesome piece.

My best bud is building a jeep CJ-7 and we're looking to do a 401 build-up along the following lines:

A good basic (broad torque 2500-5500) combo would be:

9.5:1 shortblock, +.030 bore, square decked, line honed, deck plate honed (if we can borrow/locate one for an AMC)
Edelbrock performer RPM intake, port matched to heads
Bowl ported Edelbrock heads, Serdi Valve job, install hardened locks (Edelbrock OEM is pretty skimpy)
All oil passages in block and crank chamfered, the 'priority mains' mod would be good
Deep sump pan with ported stock volume pump
Hydraulic Flat tappet Cam in the 232/237 @.050 range and /.510-ish lift on 108 installed +4 at 104 ICL
1 3/4" x 3" Headers
MSD 6AL or other good ignition
Re-curved distributor with ~12-14 degrees initial and (limited to) 20-22 of centrifugal.
good radiator

Should make about 470-480hp with a bunch of mid range torque, peak power around 5200 redline 5800-6000


thoughts?

Last edited by Streetwize; 03/12/13 11:33 AM.

WIZE

World's Quickest Diahatsu Rocky (??) 414" Stroker Small block Mopar Powered. 10.84 @ 123...and gettin' quicker!

https://www.youtube.com/watch?v=-mWzLma3YGI

In Car:

https://www.youtube.com/watch?v=PjXcf95e6v0