Description

PERFORMANCE CYLINDER HEAD GASKETS SBC

302-327-350+steam holes+400
Stainless Steel core laminate. OK on Marine.
.039″ thick, 9cc, 4.2”,CI or alum heads. OK on Alum’
blocks with liners. Minimal brinelling of Alum’ heads.

302-327-350
Perma Torque MLS [Multi layer steel]. Marine OK
.041″ thick, 9.0cc, 4.1”,CI or alum heads. OK on Alum’
blocks with liners. Minimal brinelling of Alum’ heads.

302-327-350+steam holes+400
Perma Torque MLS [Multi layer steel]. Marine OK
.041″ thick, 9.2cc, 4.165”,CI or alum heads. OK on Alum’
blocks with liners. Minimal brinelling of Alum’ heads

BBC

BBC Mark 4 to 6
Stainless steel core laminate-Marine OK
.039″ thick, 9.7cc, 4.37”, CI or alum heads. One coolant
hole per end. Three lower coolant holes. Minimal brinelling
of Aluminium heads. Pre 71 blocks may need modification

BBC Mark 4 to 6
Stainless steel core laminate-Marine OK
.039″ thick, 10.5cc, 4.54”, CI or alum heads. One coolant
hole per end. Three lower coolant holes. Minimal brinelling
of Aluminium heads. Pre 71 blocks may need modification

BBC Mark 4 to 6
Perma-Torque MLS Multi Layer Steel-Marine OK
.041″ thick, 10.6cc, 4.38”, CI or alum heads. One coolant
hole per end. Three lower coolant holes. Minimal brinelling
of Aluminium heads. Pre 71 blocks may need modification.

BBC Mark 4 to 6
Perma-Torque MLS Multi Layer Steel-Marine OK
.041″ thick, 11.2cc, 4.58”, CI or alum heads. One coolant
hole per end. Three lower coolant holes. Minimal brinelling
of Aluminium heads. Pre 71 blocks may need modification

BBC Mark 4 to 6
Perma-Torque MLS Multi Layer Steel-Marine OK
.041″ thick, 11.4cc, 4.64”, CI or alum heads. One coolant
hole per end. Three lower coolant holes. Minimal brinelling
of Aluminium heads. Pre 71 blocks may need modification.