CID LS7 12D BE Cylinder Heads 420 + CFM - 3.3" MCSA - Suit 4.125" Bore - Std Exhaust Height - 45CC Chambers (Per PAIR) - 12 Fuel Rail Extrusion 600" lift and over 470CFM

600" lift and over 470CFM at 1" lift

Manifold has LSR bolt placements

The SB Ford SC1

45" Aftermarket Mid Deck Blocks

CID LS7 12D BE Cylinder Heads 420 + CFM - 3.3" MCSA - Suit 4.125" Bore - Std Exhaust Height - 45CC Chambers (Per PAIR) - 12 Fuel Rail Extrusion 600" lift and over 470CFMCID LS7 12D 3. 3" MCSA BE Cylinder Heads suit 4. 125" Bore 45CC Chambers LS7 Inline 420 + CFM Cylinder Heads One pair of Bare 12 Degree Inline LS7 3. 3" MCSA Port BE cylinder heads CNC ported and valve jobbed with CHE valve guides and CHE Ductile Iron valve seats. Standard height exhaust port fits all existing headers. Developed by Greg Good using the LS7 2. 9" Intake port as a building block, the cross section was increased to 3. 3" to create a mid