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WalterD
11-23-2007, 10:49 AM
Is the old 401 in the Javlin the same as the Jeep?
TRobertsRN
11-23-2007, 11:41 AM
I believe it is.

Both are made by AMC.
ademster
11-23-2007, 12:47 PM
yes it is....
jeep108
11-23-2007, 04:00 PM
The javelin could have the better big valve heads.
shaggy914
11-23-2007, 07:45 PM
should be able to find the specs online.

i just use google

search: amc javelin engine specifications
shaggy914
11-23-2007, 07:51 PM
http://www.conceptcarz.com/vehicle/z2626/default.aspx

no valve sizes but the rest is there
Easyover
11-24-2007, 04:45 PM
The javelin could have the better big valve heads.

All AMC 401's and 360's use the same 2.025" int. and 1.68" exh. valved heads. The only real sought after AMC heads are on '70 AMC hi-po 390's. They were the first dog leg exhaust port heads that had rocker studs instead of bolt on bridge rockers and smaller combustion chambers. They'll give you about a 10:1 compression ratio when bolted on to 8.5:1 360's and 401's.
jeep108
11-24-2007, 08:59 PM
I must have been looking at 304 heads then.