302 Small-Block Engine Build - A Wolf Among Mice

This Race-Inspired 302 Puts Up Some Mighty Numbers

Mike Harrington Mar 1, 2009 0 Comment(s)
Sucp_0903_32_z 302_small_block_chevy Engine_build 10/33

Judgment day arrives and the mousey little motor is set up on the dyno at Jim Grubbs Motorsports. Grubbs was also responsible for much of the machine work that went into the block. After the break in period of the engine and incremental pulls, a few power pulls were made, but the numbers were only in the high 400s. It turned out the throttle linkage needed some adjusting because the secondaries were not opening. The high 400s doesn't look too bad if that is just the power from the primaries. After the linkage adjustment and some timing adjustments, another pull was made to 7,500 rpm and the lovely numbers popped up on the screen. At 5,600 rpm, the torque peaked out at 458. Peak horsepower topped off at 534 at 6,700 rpm. Like the original Z/28 race engines, this sucker is a high-rpm beast designed to run on race fuel.

Sources

Classic Industries
Huntington Beach, CA 92648
800-854-1280
www.classicindustries.com
Air Flow Research
Valencia, CA 91355
661-257-8124
AirFlowResearch.com
Comp Cams
Memphis, TN 38118
800-999-0853
http://www.compcams.com
Jim Grubbs Motorsports
Valencia, CA 91355
661-257-0101
Oliver Connecting Rods
(616) 451-8333
www.oliverconnectingrods.com

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