The Edelbrock #50459 E-Street cylinder 290 Oval Port head is designed for Big-Block applications. The Edelbrock E-Street cylinder head offers American made quality and affordable performance. E-Street cylinder head features as-cast ports and are designed for entry-level street performance applications operating in the idle-to-5500 rpm range. The modern combustion chamber designs improve the combustion process and larger than stock intake and exhaust ports move more air through your engine for improve efficiency. For use on pre-pollution controlled vehicles only.
Specifications:
| Description_ABR |
Cyl. Head |
| Description_ASM |
Chevrolet:Big-Block Mark IV:396 (6.6L)/402 (6.6L)/427 (7.0L)/454 (7.4L)/502 (8.2L) |
| Description_DEF |
Engine Cylinder Head |
| Description_EXT |
The #50459 E-Street cylinder 290 Oval Port heads are designed for BBChevy applications. American made quality and affordable performance, These heads feature as-cast ports and are designed for entry-level application |
| Description_INV |
Edelbrock BBC Cylinder Head |
| Description_MKT |
The Edelbrock #50459 E-Street cylinder 290 Oval Port head is designed for Big-Block applications. The Edelbrock E-Street cylinder head offers American made quality and affordable performance. E-Street cylinder head features as-cast ports and are designed for entry-level street performance applications operating in the idle-to-5500 rpm range. The modern combustion chamber designs improve the combustion process and larger than stock intake and exhaust ports move more air through your engine for improve efficiency. For use on pre-pollution controlled vehicles only. |
| Description_LAB |
E-Street Big-Block ChevyHead Cylinder Head Oval COMPLETE Single |
| Description_TRA |
Match with Edelbrock head gasket sets. |
| Description_TRA |
Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat |
| Description_TRA |
Designed for entry-level street performance engines and ideal for operating in the idle to 5500 rpm range |
| Description_TRA |
Includes hardened spring cups and Heli-Coil threaded inserts in the rocker stud bosses for increased strength |
| Description_TRA |
these are the details that most low-cost competitors leave out of their heads. |
| Description_TRA |
These cylinder heads are sold separately and Made in the USA! |
| Deck Thickness |
0.5625 |
| Guide Material |
Manganese Bronze |
| Guide Plate Material |
Hardened Steel |
| Exhaust Runner Volume |
110 |
| Exhaust Valve Diameter |
1.88 |
| 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. |
| Valve Stem Diameter |
0.3438 |
| Camshaft Type |
Flat Tappet |
| Family |
E-Street |
| Intake Runner Volume |
290 |
| Grade Type |
Performance |
| Series |
E-Street |
| Guide Plates Included |
Yes |
| Valve Spring Diameter |
1.50 |
| Exhaust Port Location |
Standard |
| Valve Springs Included |
Yes |
| Push Rod Diameter |
(Suggested) 0.4375 |
| Construction Type |
Complete |
| Material |
Aluminum |
| Head Casting Number |
N/A |
| Valve Angle |
26 |
| Rocker Arm Stud Diameter |
0.4375 |
| Seat Angle |
Exhaust 45 deg/Intake 45 |
| CNC Ported |
Yes |
| Seat Material |
Ductile Iron |
| Intake Valve Diameter |
2.19 |
| Combustion Chamber Volume |
110 |
| EGR Port |
No |
| Retainer Included |
Yes |
| Horsepower |
400-500 |
| Valve Spring Maximum Lift |
0.700 |
| Valve Included |
Yes |
| Quantity |
Sold Individually |
| Length |
9.0000 |
| Width |
11.0000 |
| Height |
26.0000 |
| Weight |
44.0000 |
