Straight spark plugs Uses 1.94"/1-50" valves. No heat risers A. 10159552 Bare Cast ... 93438649 Cylinder Head Assembly with valves for 290 HP This cast iron cylinder head ... following components: 14075641 Intake Valves 10241744 Intake Spring Retainer ... 10241743 Exhaust valves 14042575 Exhaust Spring Retainer ... 94666580 Valve Springs 10212810 Intake Seals 24503856 Valve ... -and-later small-blocks except for the LT1/LT4 and LS Family of engines. Take your ... Completely assembled with 1.94 /1.50 valves Uses bare head 12529093 64 cc ... than 0.475" lift require machining valve guide bosses and checking valve seal to ... valve spring retainer clearance Can be ... machined for 2.02"/1.60" valves Rocker arm studs can be pinned or ... drilled Valve spring seat diameter is 1.48" This head ...
head can only be used on 1992-and-newer LT1 and LT4 engines with the reversecoolant ... head Can only be used on 1992-newer LT1 and LT4 engines Completely assembled ... with 2.00"/1.55" valves 195 cc intake port 54.4 cc ... hex, 3/4" reach, tapered plugs) 1.48" Valve spring seat diameter Screw-in studs ( ... following components: 12555331 Intake Valves 10212808 Valve Spring Retainers ... 12551313 Exhaust Valves 10212810 Valve Stem Seals 12551483 Valve Springs ... 10212809 Valve Spring Shims 12552126 3/8" Rocker Studs ... 24503856 Valve Locks ALUMINUM FAST BURN HEADS When it ... Completely assembled with 2.00"/1.55" valves 210 cc intake port, roof raised .240 ... hex, 3/4" reach, tapered plugs) 1.48" Valve spring seat diameter Use head gaskets ... , machined rocker rails 0.530" max valve lift (without modifications) Screw-in ...