Performer Small-Block Chevy Cylinder Head Flat Tappet Polished (608719)
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Compatibility
- Platform
- Universal — verify fitment for your application
- Vehicle-specific fitment
- Review application details below
- Need help?
- Confirm fitment with us before ordering — (714) 202-7886
We list the engine platform a part is built for. That is not year-and-trim application data, so it does not confirm a fit on your specific vehicle.
- Est. install labor: 13.0 hrs — $1,625 at $125/hr. Pick Install at HRC and a 20% labor deposit ($325) is due at checkout; the balance is due at completion.
- An estimate for a stock vehicle, not a quote — we confirm it in writing when you book, before any labor is authorized. Seized hardware, prior modifications, diagnosis and machine work are quoted separately; tuning is arranged through our tuning partner. Questions: (714) 202-7886.
- Warranty & track disclaimer — read before you race it.
- Shipping & returns — rates and RMA terms.
- Installed in-house in Huntington Beach, CA — labor & service policy.
- Affirm and PayPal available at checkout.
More ways to pay at checkout
The Edelbrock #608719 Corvette center bolt cylinder head is designed for 1986-91 Tuned Port Injected (T.P.I) 5.7L small-block Chevy Corvette engines originally equipped with center bolt valve covers. Performer center bolt cylinder heads are 50-state street legal and accept factory center bolt valve covers. The intake bolt pattern utilizes the 1986-91 (straight) 90 Deg angle on all bolts. Spark plugs are angled like stock O.E. heads. The Edelbrock Performer heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. They also feature the highest quality intake and exhaust valves and valve springs.
| Part Type | Engine Cylinder Head |
|---|---|
| Intake Valve Diameter | 2.020" |
| Valve Stem Diameter | 0.341" |
| Valve Angle | 23° |
| Rocker Arm Stud Diameter | 0.375" |
| RGL | WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov. |
| Intake Runner Volume | 165.0 cc |
| Push Rod Diameter | 0.312" |
| Deck Height | 9.025" |
| Valve Spring Diameter | 1.460" |
| Valve Spring Maximum Lift | 0.575" |
| Guide Plate Material | Hardened Steel |
| Head Casting Number | 31-6085 |
| 9040 | D-215-94 |
| CNC Ported | No |
| Grade Type | Performance |
| Combustion Chamber Volume | 60.0 cc |
| Material | Aluminum |
| Deck Thickness | 0.562" |
| Exhaust Valve Diameter | 1.600" |
| Guide Plates Included | Yes |
| Weight | 30.25 lb |
| UPC | 00085347990610 |
| Country of Origin | USA |
Verified fitment · 5 applications
- Chevrolet Corvette 5.7L (1987–1991)
| Part No. | 608719 |
|---|---|
| Brand | Edelbrock |
| Part Type | Engine Cylinder Head |
| Weight | 30.25 lb |
| UPC | 00085347990610 |
| Country of Origin | USA |
Platform-level fitment (Ford + GM, Phase 1). We publish the engine platform a part is built for — not year-and-trim application data — so nothing here confirms a fit on a specific vehicle. Confirm fitment with us before ordering: (714) 202-7886.
Commonly Needed With This
Parts builders usually buy alongside this one — gaskets, seals and hardware for the install. These are suggestions, not a verified fit: call (714) 202-7886 to confirm before ordering.
