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Ships within 48 hours · Estimated delivery Sep 10 - Sep 15
NHRA Certified
to fit into Big Ford housing ends and has an I
585 in Knurl
An exclusive 12 point head design
250 in Reach Spring Included
Cometic 4.165" Bore Head Gasket 0.040" Thickness Multi-Layered Steel SB Chevy aFe Power NHRA CertifiedComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 040". With Steam Holes. Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force
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