1976 Pontiac Firebird

455 big block

Manual

2w87w6n532166

1970 gto 400 cui. heads 7/16" screw-in rocker studs 72 cc. machined combustion chamber new magna flow exaust system valve train; cam- competition cams 280h magnum cam part #51-234-4 .480 valve lift intake and exhaust 230 degree duration @ .050 rockers- competition cams "roller tip" 1.52:1 ratio rocker balls- competition cams fully groved rocker ball set lifters- competition cams hydraulic .842x2.00 locks- moroso poly locks springs- stock dual springs push rods- crane 9.130"x5/16 chromoly intake manifold: holley "street dominator" 360 deg. open plenum hand polished by owner. induction system:holley 750 double pumper mods-moroso carb insulator summit chrome dual feed fuel line with integral fuel pressure gauge summit polished fuel pressure regulator BLOCK: 1976 pontiac 455 cui bored .030 over align bored 2 bolt mains H-O racing teflon rear main seal resurfaced with deck heights squared to mains all casting flash removed from lifter valley to aid oiling crankshaft: 1970 pontiac super duty nodular iron cut .010 on mains cut .020 on rods oils holes chamfered clevite77 main bearings RODS: pontiac cast rods reconditioned and balanced end-to-end all casting flash removed a.r.p. rod bolts clevite 77 rod bearings Pistons: speed pro 3265 .030 forged aluminum balanced +/- 1/2 gram dished out 2.18x.019 to reduce compression ratio from 11.5:1 to 10.25:1 Rings: speed pro sealed power chromoly .030 over Oiling system: melling 80 psi. high volume oil pump for raiv moroso 8qt. capacity deep sump oil pan moroso extended oil pick up 3/4 tube Engine compartment: aluminum work done by blue bell auto body paint: Black imron sprayed by hackert auto body in 1981 ( still looks amazing.)