155 SMALL-BLOCK VALVE SPRINGS Part Spring Outside Pressure ... at Solid Average Retainer Valve Technical Number Type Diameter ... Installed Height Height Rate Part Seal Notes (lbs in) Number Kit 3911068 ... heads w/damper P/N 10185086; orange color code. 330585 Dual 1.379" 140# 1.75" 1. ... (see above) Spring Kit 2.02" Intake Valve 1.55" Exhaust Valve SMALL-BLOCK VALVES ... Part Number Valve Size Stem Size Description Intake Valves 12550909 ... 1.94" 11/32" Stock replacement valve used in all of our crate engines except ... 12363755 1.94" 11/32" Stainless steel valve with undercut stems to improve air flow ... , single groove design, chrome plated stems to reduce wear, hardened tips to ... 12555331 2.00" 11/32" Stock replacement valve used in the 1996 LT4 engine, and in our ...
213 BIG-BLOCK VALVE SPRINGS Part Description Outside ... Pressure at Solid Average Retainer Valve Technical Number Diameter Installed ... Height Height Rate Part Seal Notes (lbs per in) Number Kit 3970627 ... with cam P/N 3994094 w/damper PC-type seal 12371062 Dual w/ 1.538" 128# 1.90" 1. ... 16 #3989354 springs damper kit PC-type seal 14097002 Dual 1.487" 110# 1.88" 1.37" ... For competition engines Spring PC-type seal 12366567 Dual 1.525" 128# 1.70" 1.26" ... of 16 #36282 springs Spring Kit PC-type seal VALVE SPRING COMPONENTS 3875916 Spring ... Shim Shim for all 572 engines. 88963935 Valve Spring Locator Valve spring locator for ... setting the valve spring in the right location on all 572 ... engines. 12360874 Retainer/Seal Kit Kit of 16 retainers P/N 12550421 ... and 16 seals P/N 12550422 for 1991-andnewer Gen V ...