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19300955: HEAD
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19201171
GASKET KI

12480002
Gen I - SMALL BLOCK HOT CAM KIT

 

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19300955 - HEAD

GM PART # 19300955
CATEGORY: Engine Cylinder Head
PACK QTY: 1
CORE CHARGE: $0.00


List Price:$943.75
Price:$800.30
You Save: $143.45 (15%)
DESCRIPTION: HEAD

Chevrolet Performance’s Fast Burn 23-degree cylinder heads deliver maximum performance for small-block engines. A new head casting – distinguished by new Chevy bowtie logos at each end – and new valvetrain with high-rpm, LS-style beehive-type valve springs stretches the performance range of the heads to enable greater power – including a 25-hp increase in our ZZ383 crate engine! Fast Burn technology delivers more horsepower by increasing cylinder pressures, which maximizes the air/fuel mixture’s combustion. The 62cc combustion chamber is designed for used with flat-top pistons. The CNC-machined Fast Burn heads require no additional porting for optimal performance, so all you need to do is bolt them onto your small block and go! They can be used on any small-block engine with at least 4.000-inch bores and the standard-flow coolant system. Not for use on Gen II 1992-96 LT1/LT4 engines with reverse-flow cooling system.

• CNC-machined aluminum performance cylinder head

• Completely assembled with 2.000"/1.550" valves

• 210cc intake port, roof raised .240"

• 78cc D-shaped exhaust ports, raised .200" – requires Fel-Pro® exhaust gasket P/N 1470 (may require minor trimming)

• 62cc combustion chamber, .400" deck (can be milled to .060")

• No heat riser

• Angled spark plugs (5/8” hex, 3/4" reach, tapered plugs)

• 1.48" valve spring seat diameter

• Use head gaskets with stainless steel fire rings

• Raised, machined rocker rails

• .530" maximum valve lift (without modifications)

• Screw-in studs (3/8" top, 7/16" bottom)

• New "time-serts" prevents oil migration through rocker studs

• Dual bolt patterns for perimeter-bolt and center-bolt valve covers

• Dual bolt patterns for Vortec and early-model intake manifolds

• Use bare head P/N 19300956

• Use production intake gasket P/N 19301685




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