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Chevrolet Performance Parts CNC-Ported LS3 Cylinder Heads 88958758

Chevrolet Performance 88958758 - Chevrolet Performance Parts CNC-Ported LS3 Cylinder Heads

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CNC PORTED LS3 CYLINDER HEAD

Estimated Ship Date: Monday 10/27/2014 Would you rather pick it up? Select Location

  • Order this item and get free delivery and handling on your entire order! Oversize fees also waived on this item. Valid on orders shipped in the contiguous United States.

Manufacturer's Part Number: 88958758
Part Type: Cylinder Heads
Summit Racing Part Number: NAL-88958758

Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 68
CNC-Machined Combustion Chamber: Yes
Intake Runner Volume (cc): 276cc
Exhaust Runner Volume (cc): 92cc
CNC-Machined Intake Runner: Yes
CNC-Machined Exhaust Runner: Yes
Combustion Chamber Style: Open chamber
Intake Port Shape: Rectangular
Intake Port Location: Standard
Exhaust Port Shape: D-port
Exhaust Port Location: Standard
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.165 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.590 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.550 in.
Damper Spring Included: No
Retainers Included: Yes
Locks Included: Yes
Valve Stem Seals Included: Yes
Rocker Arm Studs Included: No
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: No
Accessory Bolt Holes Drilled: Yes
Valve Guides Included: Yes
Valve Seats Machined: Yes
Steam Holes Drilled: No
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: No
Quantity: Sold individually.
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

These Chevrolet Performance Parts CNC-ported LS3 cylinder heads flow more than 350 cfm at 0.600 in. lift (intake side) at 28 in. of water restriction, or nearly 10 percent more than the stock casting. This promotes greater power across the rpm band and maximizes the advantage of additional performance parts, such as a larger camshaft and high-flow intake manifold. They feature 276cc intake runners and 92cc exhaust ports, along with a combustion chamber volume of 68cc. That's the same volume as stock LS3 cylinder heads, which maintain the stock compression ratio. The cylinder heads will fit any LS engine with cylinder bores of 4.000 in. or larger. The Chevrolet Performance Parts CNC-Ported LS3 cylinder heads are delivered fully assembled, with 2.165 in. hollow stem intake valves and 1.59 in. solid stem exhaust valves, as well as valve springs, valve locks, spring retainers, and valve stem seals.

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Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles

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