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Summit Racing SUM-152123 - Summit Racing® Cast Iron Cylinder Heads for Small Chevy

  • Cylinder Head, Cast Iron, Assembled, 72cc Chamber, 165cc Intake Runner, Chevy, 302, 327, 350, 400, Each
  • Application Specific
  • Estimated Ship Date: 5/29/2012
 
BrandSummit Racing
Manufacturer's Part NumberSUM-152123
Part TypeCylinder Heads
Product LineSummit Racing® Cast Iron Cylinder Heads for Small Chevy
Summit Racing Part NumberSUM-152123
 
Cylinder Head StyleAssembled
Cylinder Head MaterialCast iron
Cylinder Head FinishNatural
Combustion Chamber Volume (cc)72
CNC-Machined Combustion ChamberNo
Intake Runner Volume (cc)165cc
CNC-Machined Intake RunnerNo
CNC-Machined Exhaust RunnerNo
Intake Port LocationStandard
Exhaust Port ShapeSquare
Exhaust Port LocationStandard
Spark Plug StyleStraight
Intake Valves IncludedYes
Intake Valve Diameter (in)2.020 in.
Exhaust Valves IncludedYes
Exhaust Valve Diameter (in)1.600 in.
Valve Springs IncludedYes
Maximum Valve Lift (in)0.520 in.
Outside Diameter of Outer Spring (in)1.250 in.
Damper Spring IncludedYes
Number of Springs Per ValveSingle
Retainers IncludedYes
Retainer MaterialSteel
Locks IncludedYes
Lock Style7 degree
Valve Stem Seals IncludedYes
Valve Stem Seal StyleUmbrella
Rocker Arm Studs IncludedYes
Rocker Arm Nut Thread Size3/8-24 in.
Rocker Arms IncludedNo
Rocker Arm Nuts IncludedNo
Guideplates IncludedNo
Valve Cover Mounting StyleCenter and perimeter bolt
Accessory Bolt Holes DrilledYes
Valve Guides IncludedYes
Valve Guide MaterialCast iron
Valve Seats MachinedYes
Valve Seat Machine Style3-angle
Valve Seat MaterialDuctile iron
Steam Holes DrilledNo
Oiling StyleThrough pushrod
Machined for O-RingNo
Heat CrossoverYes
QuantitySold individually.
NotesWill accommodate center bolt valve covers with minor modifications. Features ductile iron seats on exhaust ports only for use with unleaded gas. Machine work must be done to accommodate guideplates.
CalculatorCompression Calculator
 

Think you have to scour the local bone yards to find a decent set of GM's old double hump or fuelie cylinder head castings? Not true. In fact, we've brought back classic Chevy performance in a big way with these ready-to-run heads for small block Chevy. Our versions of the popular GM cylinder heads offer great performance for less than it would cost to rebuild an old set of double hump castings.

Warranty

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Application

Results 1-4 of 4

 
MakeCHEVROLET
Beginning Year1962
Ending Year1969
Liter5.4
CID327
Engine TypeV8
Engine Size5.4L/327
Engine FamilyChevy small block Gen I
CalculatorCompression Calculator
 
 
MakeCHEVROLET
Beginning Year1967
Ending Year1968
Liter5.0
CID302
Engine TypeV8
Engine Size5.0L/302
Engine FamilyChevy small block Gen I
CalculatorCompression Calculator
 
 
MakeCHEVROLET
Beginning Year1967
Ending Year1986
Liter5.7
CID350
Engine TypeV8
Engine Size5.7L/350
Engine FamilyChevy small block Gen I
CalculatorCompression Calculator
 
 
MakeCHEVROLET
Beginning Year1970
Ending Year1980
Liter6.6
CID400
Engine TypeV8
Engine Size6.6L/400
Engine FamilyChevy small block Gen I
CalculatorCompression Calculator
 

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Suggested Parts

Suggested Parts: Parts that may improve the performance or installation of part number SUM-152123.

Results 1-4 of 4

ARP 134-3601 - ARP High Performance Series Cylinder Head Bolt Kits

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  • ARP 134-3601 - ARP High Performance Series Cylinder Head Bolt Kits

Cylinder Head Bolts, High Performance, Hex Head, Chevy, Small Block, Kit

Part Number: ARP-134-3601

Estimated Ship Date: 5/29/2012

Fel-Pro Q7733PT2 - Fel-Pro Head Gaskets

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  • Fel-Pro Q7733PT2 - Fel-Pro Head Gaskets

Head Gasket, PermaTorque, 4.125 in. Bore, .039 in. Compressed Thickness, Chevy, 265-350, Each

Part Number: FEL-7733PT2

Estimated Ship Date: 5/29/2012

Fel-Pro QVS12869 - Fel-Pro Valve Cover Gaskets

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  • Fel-Pro QVS12869 - Fel-Pro Valve Cover Gaskets

Valve Cover Gaskets, Cork, Chevy, Small Block, Pair

Part Number: FEL-VS12869

Estimated Ship Date: 5/29/2012

NGK Spark Plugs 6630 - NGK V-Power Spark Plugs

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  • NGK Spark Plugs 6630 - NGK V-Power Spark Plugs

Spark Plug, V-Power, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Resistor, Each

Part Number: NGK-6630

Estimated Ship Date: 5/29/2012


Repair Parts

Repair Parts: Components of SUM-152123 that may require future replacement due to normal wear and tear.

Results 1-1 of 1

Summit Racing SUM-152 - Summit Racing® Rocker Arm Studs

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  • Summit Racing SUM-152 - Summit Racing® Rocker Arm Studs

Rocker Arm Studs, 3/8-24 in. Thread, 1.700 in. Effective Stud Length, Set of 8

Part Number: SUM-152

Estimated Ship Date: 5/29/2012