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400 846
Polished NOVI-1200 420HP 385TQ make offer 1001852 2007-2008 4
serious drag racing applications
10° Bead Lock Valve Keepers with lashcap recess 9009
AFR 1680/1690 LS1 245/65 OR 73CC .650 LIFT ASSEMBLED YOUR CHOICE OF CHAMBER SIZE injection 400 846CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. Our max effort cathedral port head for the LSX platform is recommended for race applications or radical "Pro Street" builds with displacements up to 454 cubic inches, operating at or below 6800 RPM. Requires a minimum bore size of 4. 000" to clear the supplied 2. 165" intake valve. 245cc Aluminum LS1 Cylinder Heads Part # Description Combustion Chamber 1680 Large Bore (4. 000+) 65cc 1690 Large Bore (4.