Small Block Ford

Original Series

Part #
S4003-7

S4003-77

Ratio
1.6:1

1.7:1

Price
$278.25

$292.95

Small Block ford 7/16 Stud

Fits
1962 to 2000 221-302, 351 Windsor

Diamond Series

Sets

Individual Pcs.

Part #
SD4003-7

SD4003-77

Ratio
1.6:1

1.7:1

Price
$383.25

$397.95

Part #
SH4003-7

SH4003-77

Ratio
1.6:1

1.7:1

Price
$330.75

$345.45

Heavy Duty Series

Part #
4003-7-1

4003-77-1

Ratio
1.6:1

1.7:1

Price
$21.00

$22.05

Part #
D4003-7-1

D4003-77-1

Ratio
1.6:1

1.7:1

Price
$27.56

$28.61

Part #
H4003-7-1

H4003-77-1

Ratio
1.6:1

1.7:1

Price
$24.31

$25.36

Sets

Individual Pcs.

Special Notes:
* Pre 1966 Heads must have straight 7/16 Studs and guide plates
* 1966 to 2000 applications must machine heads for guide plates and drill and tap for 7/16 rocker studs