BLACKWELL RACE ENGINES 6 BOLT HEADS

Available to suite LS1 LS2 LS3 L76 L77 L98

Build configuration made to order to suit your application and engine mods.

Exhaust gaskets and manifolds will need to be match ported to suit these heads 

*Note LS1 conversion will need the below parts to fit a LS1 Engine

• LS3 square port Inlet Manifold
• LS3 Fuel rail and injectors
• Injector adaptors (available here)
• LS3 map sensor 
• LS1 to LS3 map sensor adaptor loom
• 4 bolt throttle body (available here) 
• Head gaskets  (available here)
• Head boltsto suit your model (available here)

Head spec and Item included 

• 6 Bolt head design
• Stainless steel inlet & exhaust Valves
• Multi angle race valve seat
• Soft chamber for forced induction application available on request
• Flow Data based on configuration 
• BTR Performance valve springs
• BTR Trunion kit
• BTR Rocker inlet x8
• BTR Rocker exhaust x8
• Rocker Bolts
• Rocker Stand Base
• 8 x Pushrods PR8815-138 ( 8.150 x 3/8" 210 Radius
• 8 x Pushrods PR8820-138 ( 8.200 x 3/8" 210 Radius

As this is a custom build Head Flow data will be available on completion of build and provided with the cylinder heads