Cyl Head SB Oldsmobile Perf RPM for Hyd Roller Cam Complete (61035)
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Compatibility
- Platform
- Universal
- 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.
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Intended for installation on 1965-1976 Small-Block Oldsmobile 350-403 c.i. engines equipped with a hydraulic roller camshaft, these 356-T6 aluminum casting cylinder heads (#61035) are a modern refinement to our #6051 heads, except they can accommodate a factory-style mechanical fuel pump. A smaller 68 cc combustion chamber achieves a more appropriate small block compression ratio compared to our PN 61025/61029’s larger 77 cc chamber, which yields a lower compression ratio than most engine builders desire on a small block engine. These heads require a 3.9375” minimum bore and feature a modern chamber design with optimized spark plug positioning. Maximum airflow is achieved through the factory 6-degree valve angle using high-flow 200 cc intake and 130 cc exhaust port volumes, along with 2.072” intake and 1.680” exhaust valve sizes in their O.E. positions. A finished deck thickness with added material above the intake port and pre-counterbored head-bolt holes for .5” diameter studs provide extra clamping force in key areas. A stud-and-guide plate valvetrain system (as opposed to the O.E. pedestal type) provides a solid foundation for the beefier diameter pushrods, and Helicoil inserts in the exhaust and rocker stud holes keep bolts secured. However, there are no provisions for a heat crossover. Although these heads will fit on Big-Block Oldsmobile engines, the 68-cc combustion chamber size is not ideal for a big-block application as it will raise compression. See PN61025 and PN61029 for big-block specific cylinder heads.
- 356-T6 Aluminum Casting, 68cc Combustion Chamber Volume, 200cc Intake Port Volume, 130cc Exhaust Port Volume, 2.072” intake and 1.680” exhaust valve sizes, 3/8” dia. Pushrod diameter, 5/8” Finished Deck Thickness
| Part Type | Engine Cylinder Head |
|---|---|
| Prop 65 Y/N | Y |
| Prop 65 - Long Label | WARNING: This product can expose you to chemicals known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov. |
| Required Products | 7340 - Cylinder Head Gasket Set for Oldsmobile 7238 - Exhaust Manifold Gasket Set for Oldsmobile 7284 - Intake Manifold Gasket for 1965-76 400-425-455 Oldsmobile engines 7598 - Valve Cover Gasket Set for Oldsmobile |
| Related Products | 2156 - Performer Intake Manifold for 1965-79 Pontiac 326-455 Non-EGR 7156 - Performer RPM Pontiac 326-455 Intake Manifold 7373 - Engine Gasket Set (Head / Intake / Exhaust / Valve Cover) for Oldsmobile 4485 - Signature Series Valve Covers for Oldsmobile 350-455 V8 3712 - Performer-Plus Camshaft Kit for Small-Block Oldsmobile 350-403 V8 22764 - Edelbrock Max-Fire Distributor for Oldsmobile 260-455 V8 85582 - Edelbrock E-Series Cylinder Head Bolt Kit 85582 for Oldsmobile big-block 3113KT - Adjustable Double Roller Timing Set for Oldsmobile 400-455 |
| Cross sell / Upsell Part Numbers | 311105 - Super StreetFighter TH350 6" Tailshaft Non Lock-Up (Buick/Oldsmobile/Pontiac), K42-222-4 - Xtreme Energy 218/224 Hydraulic Flat Cam K-Kit for Oldsmobile 260-455 |
| 10271 | No |
| 10267 | No |
| 10266 | No |
| 6626 | 68 cc |
| 10254 | Square |
| 10247 | 130 cc |
| 10251 | 6° |
| 10249 | 1.68" |
| 6629 | 0.3438" |
| 6634 | Yes |
| 10253 | Rectangle |
| 6627 | 200 cc |
| 10250 | 6° |
| 6628 | 0.3438" |
| 10248 | 2.072" |
| 10 | Aluminum |
| 10671 | Yes |
| 10255 | Manganese Bronze |
| 10252 | Chromoly Steel |
| 4624 | .545" |
| 10025 | Yes |
| 6631 | .6" |
| Cylinder Head Style | Assembled |
| Exhaust Port Location | Standard |
| Exhaust Valve Job Diameter | 1.680" |
| Guidplate Pushrod Size | 3/8" |
| Intake Port Location | Standard |
| Retainer Diameter | 1.055" |
| Retainer Lock Style | 7d° |
| Retainer Material | Steel |
| Steam Holes Drilled | No |
| Valve Cover Mounting Style | Perimeter Bolt |
| Valve Lock Style | 7° |
| Valve Spring Type | Beehive |
| Valve Lock Material | Steel |
| 306 | Yes |
| Weight | 35.7 lb |
| UPC | 085347610358 |
| Country of Origin | USA |
Verified fitment · 128 applications
- Buick Apollo 4.3L (1975)
- Buick Apollo 5.7L (1975)
- Buick Century 5.7L (1975–1976)
- Buick Century 6.6L (1977)
- Buick Electra 6.6L (1977–1979)
- Buick Estate Wagon 6.6L (1977–1979)
- Buick LeSabre 5.7L (1975–1976)
- Buick LeSabre 6.6L (1977–1978)
- Buick Regal 5.7L (1975–1976)
- Buick Riviera 6.6L (1977–1978)
- Buick Skylark 4.3L (1975–1976)
- Buick Skylark 5.7L (1975–1976)
- Cadillac Seville 5.7L (1976)
- Chevrolet Bel Air 5.7L (1975)
- Chevrolet Camaro 5.7L (1975)
- Chevrolet Caprice 5.7L (1975)
- Chevrolet El Camino 5.7L (1975)
- Chevrolet Impala 5.7L (1975)
- Chevrolet Monte Carlo 5.7L (1975)
- Chevrolet Nova 5.7L (1975)
- GMC Sprint 5.7L (1975)
- Oldsmobile 98 6.6L (1977–1979)
- Oldsmobile Custom Cruiser 6.6L (1977–1979)
- Oldsmobile Cutlass 4.3L (1975–1976)
- Oldsmobile Cutlass 5.7L (1968–1976)
- Oldsmobile Cutlass 6.6L (1977)
- Oldsmobile Cutlass Salon 4.3L (1975–1976)
- Oldsmobile Cutlass Salon 5.7L (1975–1976)
- Oldsmobile Cutlass Salon 6.6L (1977)
- Oldsmobile Cutlass Supreme 4.3L (1975–1976)
- Oldsmobile Cutlass Supreme 5.7L (1968–1976)
- Oldsmobile Cutlass Supreme 6.6L (1977)
- Oldsmobile Cutlass Tiara 4.3L (1976)
- Oldsmobile Cutlass Tiara 5.7L (1976)
- Oldsmobile Delmont 88 5.7L (1968)
- Oldsmobile Delta 88 5.7L (1968–1976)
- Oldsmobile Delta 88 6.6L (1977–1979)
- Oldsmobile F85 5.7L (1968–1972)
- Oldsmobile Omega 4.3L (1975–1976)
- Oldsmobile Omega 5.7L (1973–1976)
- Oldsmobile Toronado 6.6L (1977–1978)
- Oldsmobile Vista Cruiser 5.7L (1968–1975)
- Pontiac Bonneville 6.6L (1977–1979)
- Pontiac Catalina 6.6L (1977–1979)
- Pontiac Firebird 5.7L (1976)
- Pontiac Firebird 6.6L (1977–1979)
- Pontiac Grand Am 5.7L (1975)
- Pontiac Grand LeMans 4.3L (1976)
- Pontiac Grand LeMans 5.7L (1975–1976)
- Pontiac Grand LeMans 6.6L (1977)
- Pontiac Grand Prix 5.7L (1976)
- Pontiac Grand Prix 6.6L (1977)
- Pontiac LeMans 4.3L (1976)
- Pontiac LeMans 5.7L (1975–1976)
- Pontiac LeMans 6.6L (1977)
- Pontiac Ventura 4.3L (1975–1976)
- Pontiac Ventura 5.7L (1975–1976)
| Part No. | 61035 |
|---|---|
| Brand | Edelbrock |
| Part Type | Engine Cylinder Head |
| Weight | 35.7 lb |
| UPC | 085347610358 |
| 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.