SPECIFICATIONS

VALVE SIZES: 1.94" intake     1.54" exhaust   11/32" stem

VALVE MATERIAL: Stainless steel, hard chrome stems, hardened tip.

VALVE LENGTHS:  5.110"

VALVE SPRINGS: Single spring with damper, 1.250" diameter, intalled height 1.750". 110# Seat @ 1.750"    280# @ .500"   Seat pressure 85# with +.050" keepers.

STEEL SPRING CUPS

Hardened keepers with 1 piece steel retainers.

COMBUSTION CHAMBER:  60cc +-

BARE MACHINED CASTING WEIGHT:   24.5#

DECK THICKNESS:  .625"

VALVE GUIDES: Manganese Bronze alloy

STEM SEALS: Positive type

http://ford-y-block.com 

20 miles east of San Diego, 20 miles north of Mexico