JMac Performance

JMac Performance JMac Performance is committed to providing custom built engines that exceed expectations. We’re building lasting relationships by providing personalized service

Enhancing your performance experience by paying attention to your performance goals while building lasting relationships by providing personalized service Performance Engine Building

OUR MISSION

JMac Performance is committed to providing custom built performance engines that exceed our customer’s expectations. Enhancing our customer’s performance experience by paying attention to their performance goals.

04/10/2026

JMacPerformance.com 383 SBC 425-450 hp, 450 tq

10/03/2025

Irwindale 1/8 mile drag strip 11-10-24
JMacPerformance 69 Chevelle
6.705 @ 101.79

10/03/2025

Another JMacPerformance custom engine build 400 horsepower - 420 lb-ft torque.
See all the details of the build at JMacPerformance.com "Featured Engines" section of the web site

08/27/2025

JMacPerformance.com 420 horsepower Chevy 350

Last race at Irwindale's 1/8 drag strip
02/11/2025

Last race at Irwindale's 1/8 drag strip

Ford 347 400 HP 425 TQ
02/11/2025

Ford 347 400 HP 425 TQ

02/11/2025

One of my last passes at Irwindale's 1/8 mile track
6.62 @101.72

Address

Rancho Santa Margarita, CA
92688

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