Tuesday, February 8, 2011

1967-Later 396-502 C.I.D. Chevrolet V8 Engines Performer RPM Hydraulic Roller Camshafts

Edelbrock Performer RPM hydraulic roller camshafts are ground specifically for use with the corresponding Performer RPM manifold. The Performer RPM manifold #7161 or RPM Air-Gap #7561 (for oval port heads), or Performer RPM #7163 or RPM Air-Gap #7563 (for rectangular port heads), and Performer RPM Hydraulic Roller camshaft #2261 (1965-1989 Mark IV and 1989-1995 Mark V blocks) or 2262 (1996-Up Mark VI blocks with camshaft thrust plate) are designed to work as a team to give you better driveability and performance. They are dyno-matched and street-proven.
For best results, use the Edelbrock manifold/camshaft package with the recommended carburetor and headers. Performer RPM camshafts are designed for use with modified or high performance cylinder heads and valve train components only. Screw-in studs, adjustable rocker arms, and matching valve springs must be used.
Installation Procedure:
1. Check lifters as covered in Lifters section. Coat cam lobes with fresh clean oil. Lube distributor drive of cam with assembly lube (supplied).
2. Install new camshaft with new sprockets and timing chain. Torque to 25 ft/lbs. (Make sure to install the thrust plate before the cam sprocket on late model blocks).
NOTE: Roller cams require the use of a cam thrust button spacer to control camshaft end play. Check camshaft end-play, maintain between .005" and .010". This must be checked with the timing cover, thrust button and gasket in place, just as it would be after final assembly without the roller lifters installed. Late model (1996-Up Gen VI) blocks use a thrust plate and do not require a thrust button.
CAUTION: When using Performer-Link True Rolling Timing Chain and Gear Set (#7810) or Accu-Drive gear drive set (#7891) with an Edelbrock camshaft, straight up timing alignment is achieved. If any other timing gear set is used, it is necessary to check camshaft position for correct timing alignment. This requires indexing the camshaft with a degree wheel to verify timing alignment. O.E.M. or non-Edelbrock timing gear sets are not recommended for use with Edelbrock camshafts. Use locking compound material on bolt threads holding gear to cam. Torque to factory specification listed in Motors or other repair manual.

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