230-250-292 1.94 6 cyl Performance head .600 lift PES LUMP roller rockers 2424
PES LUMP KIT!!
As the title says. Performance head for the 230-250-292 6 cyl engines.
Expect a TQ and HP increase with this head. Ready to bolt on and Go!
LARGE chamber head. Right at 70CC Chamber. Will raise the compression of a 230-250-292
Cleaned, crack checked, pressure tested
New guides installed
Hardened exh seats installed
Intake valve increased to 1.94
Exhaust valve 1.6
Throats were cut for the larger valves and radius-ed in by hand
Mild porting, valve guides boss is coned
Chamber unshrouded for the intake valves
PES bolt in lump kit installed
Machined for Viton valve seals And installed.
Uses Roller rockers with Screw in studs, 7/16 Studs included
Stainless steel chromed stems valves. Undercut stems.
Setup with .600 lift capable springs and lite weight retainers.
Head decked .03 to increase compression Appr 70CC
gasketeted seat sparkplugs 1974 older