GM12498772-7
$7,212.07
inc. GST
SKU: GM12498772-7
BRAND: Rocket
Small Block Chevy 383 c.i.d. Crate Engine Aluminium Heads
420 hp/450 ft-lbs torque, 10.1 Comp, Hyd Flat Tappet Cam
BRAND: Rocket
Small Block Chevy 383 c.i.d. Crate Engine Aluminium Heads
420 hp/450 ft-lbs torque, 10.1 Comp, Hyd Flat Tappet Cam
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- 4 bolt main 1pc rear seal block with drivers side dipstick only
- Square and parallel decked
- Align honed main bearing bore
- Cylinders honed on computer controlled machine to within .0002" straightness and roundness
- Cylinders are sonic tested for thickness
- New cast steel crankshaft
- Flat top Hypereutectic pistons
- Chevy heavy beam rods with 150,000 psi bolts
- Hastings Moly rings
- Balanced rotating assembly
- Melling high volume oil pump
- Flat tappet camshaft
- Long slot, stamped steel rockers
- Heavy duty double roller timing set
- Blue Print aluminium cylinder heads
- 195cc
- 1.25" diameter valve springs
- Hardened retainers and springs
- 2.02" swirl polished intake valves
- 1.60" swirl polished exhaust valves
- Hardened push rods
- 10 to 1 compression
- New chrome valve covers
- Brass freeze plugs
- Dyno tested - and shipped with results
- CAM: .480 Int / .486 Exh & 229 Int / 230 Exh duration @ .050
- Ignition timing: 34 degrees total (at 4000 RPM)
- This engine requires a 400ci weighted harmonic balancer, and late 350ci weighted flexplate/flywheel.
