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Corvette Edelbrock Performer Cylinder Heads, 1986-1991

Corvette Edelbrock Performer Cylinder Heads, 1986-1991
$1,112.99 ea
NEWARRIVING SOONEstimated Ship Date 12/16/2021 (If Ordered Today)
Model: 3499389
No Discount / Limited Discount
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
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Designed for 1986-91 Tuned Port Injected (T.P.I) 5.7L small-block Chevy Corvette engines originally equipped with centerbolt valve covers. Performer centerbolt cylinder heads are 50-state street legal and accept factory centerbolt valve covers. The intake bolt pattern utilizes the 1986-91 (straight) 90° angle on all bolts. Spark plugs are angled like stock O.E. heads.

Combustion Chamber Volume: 60cc
Intake Runner Volume: 165cc
Exhaust Runner Volume: 65cc
Intake Valve Diameter: 2.02''
Exhaust Valve Diameter: 1.60''
Valve Stem Diameter: 11/32''
Valve Guides: Manganese Bronze
Deck Thickness: 5/8''
Valve Spring Diameter: 1.46''
Valve Spring Maximum Lift: 0.575''
Rocker Stud: 3/8''
Guideplate: Hardened Steel
Pushrod Diameter: 5/16''
Valve Angle: 23°
Exhaust Port Location: Stock
Spark Plug Fitment: 14mm x 3/4'' Reach,
Gasket Seat

 

Valve Lift Intake Exhaust
.100'' 64 54
.200'' 122 96
.300'' 177 124
.400'' 217 147
.500'' 229 166
.600'' 232 175
.700'' N/A N/A
Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28'' H2O

Technical Notes: Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years
Chevrolet Corvette 1986 - 1991

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