Description
Technical Specifications
Suits: Holden 5.0L (304,308,355,383)
Material: AS 601, 356 -T6 heat treated aluminium
Min Hardness: 88HB
Weight: Bare 10.8kg – Assembled 12.7kg
CC Vol.: 59cc w/ 2.0mm extra joint face material – 44cc with face machined to std GM thickness
Deck Thickness: .625”
Inlet Port Vol: 168cc w/o injector notches
Inlet Port Dimensions (hxw):52mm x 31mm
Exhaust Port Dimensions (hxw):35.5mm x 35mm
Inlet Valve Size: 2.020”min – Insert Size 2.200” x .375”
Exhaust Valve Size: 1.600”min – Insert Size 1.750” x .375”
Spring Pockets: 1.50”dia min – Material Thickness .420”
Installed Height: 1.760” w/ std length valves
Valve positions: Inlet valve: std position – Exhaust valve: moved 2.0mm away from inlet – Exhaust port exit: moved 2.0mm opposite
Spark Plugs: Machined to accept tapered seat or washer seat spark plugs
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