Small Block Ford

Original Series

Part #
S4003

Ratio
1.6:1

Price
$261.45

Small Block ford 3/8 Stud

Fits
1962 to 2000 221-302, 351 Windsor

Diamond Series

Sets

Ratio
1.6:1

Price
$366.45

Part #
SD4003

Part #
SH4003

Ratio
1.6:1

Price
$313.95

Individual Pcs.

Heavy Duty Series

Part #
4003-1

Ratio
1.6:1

Price
$19.95

Part #
D4003-1

Ratio
1.6:1

Price
$26.51

Part #
H4003-1

Ratio
1.6:1

Price
$23.26

Sets

Individual Pcs.

Special Notes:
* Pre 1966 Heads must have straight 3/8 Studs and guide plates
* 1966 to 2000 applications must machine heads for guide plates and drill and tap for 3/8 rocker studs