1949-1974 General Motors NOS Big Block Engine Long Cylinder Head Bolt With Raised X GM Part # 3877668

This new old stock big block engine long cylinder head bolt with raised X  was manufactured by General Motors for use on the following models:

Cadillac 1949-1963 All – replaces 1451863 (Special),

Chevrolet 1965-1974 Corvette All with 396, 427, 454 engine except Aluminum Cylinder & case,

Chevrolet 1965-1970 All with 396 engine (short),

Chevrolet 1965-1970 All with 396, 400 engine 4BC, 427, 454,

Chevrolet 1965-1969 Chevy, Chevelle, Camaro All with 396 engine

Chevrolet 1965-1969 All with 427 engine,

Chevrolet  1970-1976 All with 454 engine,

Chevrolet  1970-1971 All with 400 engine 4BC,

Chevrolet 1972 All with 402 engine

Chevrolet Pickup 1968-1970 All with 396 engine

Chevrolet Truck  1966-1970 with 366, 427 engine

GMC 1971 Sprint with 400 engine  4BC, 

GMC 1971-1975 Sprint with 454 engine, 

GMC 1972 Sprint with 402 engine

Parts catalog note: 4-1/2″ O.L. Raised Cross on head

Replaces 1451863

NOTE:  Images show the condition and what is included in the sale.

*This item may be re-packaged to protect it from shelf wear.