AMC 3/8 stud
Part #
S4004-7

S4004-77
Ratio
1.6:1

1.7:1
Price
$292.95

$303.45
 
4004
4004-7
amc v8
Fits
1966 to 1991 290-401 AMC V8



























Part #
S4004
Ratio
1.6:1
Price
$271.95




AMC 7/16 stud



Special Notes:
* Pre 1974 heads must install a straight 7/16 or 3/8 rocker stud in place of the factory bottleneck style.
*
1974 to 1991 must machine head for guide plates and drill & tap for 7/16 or 3/8 rocker studs.




SBF ratios
Part #
4004-7-1

4004-77-1
Ratio
1.6:1

1.7:1
Price
$22.05

$24.15
Ratio
1.6:1
Price
$21.53
Part #
4004-1
Individual Pcs.
Sets
Individual Pcs.
Sets