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This is the head we use for all of our big boost
The Maxima products now in use are their assembly lube
625" Max Lift
COMP's Max-Lift BSR shaft rocker system provide valve train stability
750" mains held down by 1/2" main studs (Dart LS Next2 block
Dart Parts Kit for Big M Chevy Block Parts Kit This is the head weIf you're building up a Dart block and want the best bearings with the correct sizing, then you'll want Dart cam bearings. They're fully grooved, made from steel backed babbit, and specifically designed for high performance use. To all of this, Dart adds their own moly PTFE coating for even better performance and durability. This coating is approximately 0. 0005 in. thick, which translates into 0. 001 in. less overall clearance. Dart Big Block Chevy
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