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Best Sellers

Explore customer-favorite automotive components chosen for proven performance, dependable fit, and lasting value. Find popular fuel, intake, tuning, and maintenance products for repairs, restorations, and custom engine builds.
-70%

Performer Pontiac D-Port Cylinder Head 87cc Hydraulic Roller Springs

Regular Price $487.65
Sale Price $487.65 Regular Price $1,625.50
-70%

RPM Big-Block Buick Cylinder Head

Regular Price $478.65
Sale Price $478.65 Regular Price $1,595.50
-70%

Performer Jeep 4.0L Cylinder Head

Regular Price $580.05
Sale Price $580.05 Regular Price $1,933.50
-70%

Performer 91-06 Jeep 4.0L Inline Six Cylinder Head - Bare

Regular Price $437.85
Sale Price $437.85 Regular Price $1,459.50
-70%

Performer RPM 460 HP Top End Kit for 1957-86 Chevy 383-427 V-8 Engines

Regular Price $1,488.88
Sale Price $1,488.88 Regular Price $4,962.95
-70%

Performer RPM 435 Top End Kit for 1987 & later Chevy 383 V-8 Engines

Regular Price $1,358.38
Sale Price $1,358.38 Regular Price $4,527.95
-70%

Performer RPM 417 HP Top End Kit for 1967-91 Chrysler 340-418 Engines

Regular Price $1,073.38
Sale Price $1,073.38 Regular Price $3,577.95
-70%

Performer RPM 438 HP Top End Kit for 1981 and earlier Ford 331-363 V8 Engines

Regular Price $1,461.58
Sale Price $1,461.58 Regular Price $4,871.95
-70%

Performer RPM 460 Top End Kit for 1987 & later Chevy 383 V-8 Engines

Regular Price $1,316.68
Sale Price $1,316.68 Regular Price $4,388.95
-70%

Performer RPM Top End Kit for 1997-04 Chevy LS1 Engines

Regular Price $1,859.38
Sale Price $1,859.38 Regular Price $6,197.95
-70%

Performer RPM 400 HP Top End Kit for 1969-95 Small-Block Ford 351-W Engines

Regular Price $1,161.28
Sale Price $1,161.28 Regular Price $3,870.95
-70%

Performer RPM 505 HP Top End Kit for 2008 & Later LS3 Engines

Regular Price $1,648.48
Sale Price $1,648.48 Regular Price $5,494.95
-70%

Performer RPM 451 HP Top End Kit for 1969-95 Small-Block Ford 351W Engines

Regular Price $1,704.28
Sale Price $1,704.28 Regular Price $5,680.95
-70%

Performer RPM 450 HP Top End Kit for 1965-76 Big-Block Olds 400-500 c.i.d.

Regular Price $1,303.78
Sale Price $1,303.78 Regular Price $4,345.95
-70%

Performer RPM 482 HP Top End Kit for 1968-79 Big-Block Chrysler 440 Engines

Regular Price $1,064.08
Sale Price $1,064.08 Regular Price $3,546.95
-70%

Performer RPM 506 HP Top End Kit #2045 For 1968-87 BB Ford 460-522 V-8 Engines

Regular Price $1,439.08
Sale Price $1,439.08 Regular Price $4,796.95
-70%

Performer RPM 451 HP Top End Kit for 1961-65 Chevy W-Series 409 V-8 Engines

Regular Price $2,016.88
Sale Price $2,016.88 Regular Price $6,722.95
-70%

Performer RPM 471 HP Top End Kit for 1962-79 Pontiac 389-467 c.i.d. Engines

Regular Price $1,354.18
Sale Price $1,354.18 Regular Price $4,513.95
-70%

Performer RPM 460 HP Top End Kit for 1962-79 Pontiac 389-467 c.i.d. Engines

Regular Price $1,387.78
Sale Price $1,387.78 Regular Price $4,625.95
-70%

Performer RPM 611 HP Top End Kit for 1996 & later Chevy 502 V-8 Engines

Regular Price $1,487.38
Sale Price $1,487.38 Regular Price $4,957.95
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