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Summit Racing® Aluminum Cylinder Heads for Small Chevy SUM-162109

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Cylinder Heads, Aluminum, Assembled, 62cc Chamber, 170cc Intake Runner, Chevy, 302, 327, 350, Pair

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Brand: Summit Racing
Manufacturer's Part Number: SUM-162109
Part Type: Cylinder Heads
Summit Racing Part Number: SUM-162109

Cylinder Head Style: Assembled
Cylinder Head Material: Aluminum
Cylinder Head Finish: Natural
Combustion Chamber Volume (cc): 62
CNC-Machined Combustion Chamber: No
Intake Runner Volume (cc): 170cc
Exhaust Runner Volume (cc): 69cc
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Intake Port Shape: Rectangular
Intake Port Location: Standard
Exhaust Port Shape: D-port
Exhaust Port Location: Standard
Spark Plug Style: Angle
Intake Valves Included: Yes
Intake Valve Diameter (in): 2.020 in.
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in): 1.600 in.
Valve Springs Included: Yes
Maximum Valve Lift (in): 0.490 in.
Outside Diameter of Outer Spring (in): 1.250 in.
Damper Spring Included: Yes
Number of Springs Per Valve: Single
Retainers Included: Yes
Retainer Material: Chromoly steel
Locks Included: Yes
Lock Style: 7 degree
Valve Stem Seals Included: Yes
Rocker Arm Studs Included: Yes
Rocker Arm Nut Thread Size: 3/8-24 in.
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: Yes
Guideplate Pushrod Size: 5/16 in.
Valve Cover Mounting Style: Perimeter bolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 23
Exhaust Valve Angle: 23
Valve Guides Included: Yes
Valve Guide Material: Phosphorous bronze
Valve Seats Machined: Yes
Valve Seat Machine Style: 3-angle
Valve Seat Material: Tungsten
Steam Holes Drilled: No
Oiling Style: Through pushrod
Machined for O-Ring: No
Heat Crossover: Yes
Quantity: Sold as a pair.
CARB EO Number: D-369-13 (pdf)
To see a list of qualifying vehicles, enter CARB EO Number D-369-13
In-Store Pickup: Choose In-store pick-up (OH, GA, NV) on our web site.

Upgrade those stock cylinder heads on your small Chevy without spending a fortune! Our lightweight, A-356 cast aluminum heads are a lighter, more powerful version of your stock set, flowing 240 cfm at 0.500 in. lift.

The 62cc heads also feature:

* 170cc intake ports
* 69cc exhaust ports
* Hardened valve seats
* Fully assembled
* 1.25 in. diameter valve springs (0.480 in. maximum lift)
* 5/16 in. guideplates
* 3/8 in. ARP screw-in studs
* Stainless steel 2.02 in. back cut intake valves
* 1.60 in. exhaust valves
* 7 degree valve locks
* Chromoly retainers
* Phosphorus bronze valve guides

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Most Helpful Reviews Review this Product

1 Customer Reviews for Summit Racing SUM-162109 - Summit Racing® Aluminum Cylinder Heads for Small Chevy

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Not bad for the money

Summit RacingSummit Racing Verified Purchase

Performance over stock is night and day. Don't like the rails being 3/8 taller casting is pretty rough. But over all better than the competitors in the same price range.

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Reviewer: RAYMOND from TX

Date: July 28, 2014

Appearance
Ease of Installation
Price/Value
Quality

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

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