E-Street™ Chrysler 440
This E-Street cylinder head is ideal for entry-level street performance 1961-79 Chrysler 361-440 c.i.d. It features an idle-to-5,500 rpm optimum operating range.
Engineered to improve engine efficiency, resulting in more horsepower and torque. The 75cc combustion chamber retains the stock 9.5:1 compression ratio, allowing this head to be used with stock pistons, retaining the 9.5:1 compression. The modern combustion chamber design improves the combustion process, while the larger than stock intake and exhaust ports move more air through the engine.These features improve the engine’s efficiency, resulting in more horsepower and torque.
These heads feature:
- A356 aluminum castings that are heat treated to T-6 spec for superior casting strength and quality.
- Hardened spring cups for long-term wear protection.
- Heli-Coil® threaded inserts in the rocker shaft bosses for increased strength.
These are the details that most low-cost competitors leave out of their heads!
P/N 5090 (Sold in pairs)