Home - GM Crate Motor Parts and Kits - 604 and 603 CRATE ENGINES/MOTORS & PARTS - GM Crate 604 Aluminum Roller 1:6 Rocker Arms

GM Crate 604 Aluminum Roller 1:6 Rocker Arms

GM Crate 604 Aluminum Roller 1:6 Rocker Arms
GM Crate 604 Aluminum Roller 1:6 Rocker Arms
6.59 lbs
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Chevrolet Performance aluminum roller rocker arms resemble the ones used in the 1996 Corvette LT4 engine, except the trunnions have been machined to fit early-model 3/8-inch rocker studs. The arms are self-aligning with improved stiffness. They will accommodate up to 0.575" valve lift. They are available in 1.5:1 and 1.6:1 ratios. Roller Rocker Arm Set, 1.6:1 Ratio 19210729 Chevrolet Rocker Arms Set of 16, 3/8" stud 1.6:1 ratio roller rockers Use P/N 19210725 for single service part Notes: When using a high-lift camshaft, check valve spring coil bind, retainer-to-seal clearance and piston-to-valve clearance. Check for adequate pushrod clearance when using on cast-iron heads. It may be necessary to remove valve cover drippers for proper rocker arm clearance. P/N 19210729 cannot be used on ZZ3 engines with orange valve springs.


Arm Finish Natural

Arm Material Aluminum

Quantity Sold as a set of 16

Rocker Arm Body Style Standard

Rocker Arm Mounting Style Stud

Rocker Arm Nut Style Polylock

Rocker Arm Ratio 1.6

Rocker Arm Style Full roller

Self-Aligning Yes

Shims Included No

Manufacturer's Part Number: 19210729

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