
E-Series Cylinder Head Bolt Kit Big Block Chevy Mark IV/V
Edelbrock 85512 E-Series Cylinder Head Bolt Kit:
- Includes (8) 2.250 in. L, (4) 3.750 in. L, (12) 4.250 in. L, (8) 5.250 in. L 7/16-inch diameter head bolts and washers (enough for both heads)
- Chevy Big Block 1965-1990 Mark IV or V engines
- Compatible with Edelbrock 50459, 60459, 60479, 60499, 60559, 61459, 61559, 79539, or 79559 cylinder heads (sold separately)
- Bolt threads rolled after heat-treating for accuracy
- Superior yield strength of 190,000 psi provides reliable loading and accurate torque
- Reduced diameter hex head for socket clearance
- Durable black-oxide finish w/sealer and Edelbrock E-Logo stamped on bolt head
Since founder Vic Edelbrock Sr. began building performance intake manifolds in 1938, Edelbrock has grown into one of the most trusted names in American high-performance parts, from carburetors and intake manifolds to cylinder heads, crate engines, and EFI systems. JEGS has spent decades supplying Edelbrock components to racers, engine builders, and street enthusiasts, backing this extensive lineup with in-house technical support, fast shipping, and a Price Match Guarantee so you can choose proven Edelbrock parts with confidence.
Heat-Treated and Rolled Thread Cylinder Head Bolts for Accurate Clamping and Superior Strength
Edelbrock Cylinder Head Bolt Kits and E-Series Cylinder Head Bolt Kits come complete with everything to install the cylinder head(s) to the engine and are available with up to 190,000 PSI tensile strength.





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