Victor Jr. 64cc Aluminum Cylinder Heads
These heads have .300'' raised exhaust ports and hardened, ductile iron valve seats and phosphor bronze guides. A 9/16'' thick deck surface provides superior gasket retention. Valves are 1-piece, stainless steel.Installation Notes
To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs, such as the RC12YC (P/N 192-49776). They are 0.230'' shorter than conventional spark plugs and have a 5/8'' hex for easier access. Due to valve-to-cylinder bore interference, SB-Chevy heads may not be used on engines with less than 4'' bore (262, 265, 283, 305, 307 c.i.d.) except with camshafts having less than .450'' valve lift.
|Combustion Chamber Volume:||64cc|
|Intake Runner Volume:||215cc|
|Exhaust Runner Volume:||85cc|
|Intake Valve Diameter:||2.08''|
|Exhaust Valve Diameter:||1.60''|
|Valve Stem Diameter:||11/32''|
|Valve Guides:||Manganese Bronze|
|Valve Spring Diameter:||1.55''|
|Valve Spring Maximum Lift:||0.670''|
|Exhaust Port Location:||+.300|
|Spark Plug Fitment:||14mm x 3/4'' Reach, |
|Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28'' H2O|
These maximum power and affordable Edelbrock Victor Jr. cylinder heads have the potential to produce 530-580 horsepower right out of the box. All heads are sold individually, and part numbers 350-77579 and 350-77649 are bare heads with valves only. With 64cc chambers and a 12cc domed piston in a 350 engine, the compression ratio is approximately 12.5:1. In addition, these heads accept standard 23° valvetrain hardware.
Edelbrock Victor Jr. Cylinder Head Applications
Small Block Chevy 302-400 (Competition and High-Performance Street)
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