Stage 4 Camshaft

$680.00 (EXCL. GST)

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222/232 Degrees duration @ 0.050" cam lift, .476"/.476" lift.

Our world famous H20 hydraulic grind. Requires hi-stall or manual and ECU Reflash. Still streetable
Lumpy idle. Would be at home in 355 strokers.

Engine Make: Holden

Engine Model: 304EFI

Part Number: HP-H20

Cam Lift

Intake: .289"

Exhaust: .289"

Rocker Ratio

Intake: 1.65

Exhaust: 1.65

Nett Valve Lift

Intake: .476"

Exhaust: .476"

Advertised Duration @ .006"

Intake: 291

Exhaust: 298

Duration @ .050"

Intake: 222

Exhaust: 232

Timing @ .050"

IVO: 5

IVC: 36

EVO: 48

EVC: 4

Suggested Centre Lines

Intake: 106

Exhaust: 112

Lift @ TDC

Intake: .063"

Exhaust: .060"

HL969-16 Lifters HL969-16 Genuine GM set of lifters for Holden V8 engines, made by Hylift Johnson.

$336.00 (EXCL. GST)
HL969R-16 Anti Pump Lifters HL969R-16 Genuine GM Anti Pump Lifters for Holden V8 engines, made by Hylift Johnson

$352.00 (EXCL. GST)
4833-16 Valve Spring Set CHEVROLET / HOLDEN V8. Single spring to suit hydraulic lifter camshafts.

$256.00 (EXCL. GST)