Legacy web site. New site coming soon. J1 Motorsports specializes in blueprinted Chrysler 426 Hemi (Gen2) and New Hemi (Gen3) engines for classic and modern muscle cars.  We build high quality custom turn-key engines for a loyal base of repeat customers, including custom vehicle builders and car collectors. 

Our focus: Hellephant Plus (G3), 426 Custom Crate Engine (G2), Mopar Hemi Parts Development, Dyno Testing, Hemi Jeep Wrangler, Engine Rebuilds OEM Hemi, 1000+ HP G3 Hemi packages, Hemi Engine Swaps, EFI and Tuning. 

Contact email: owner@j1motorsports.com  Phone: 949-449-3209

ebay seller: 426hemispherical  


Resto Mod - J1 511 EFI HEMI engine  New Mexico, USA 

OEM Style - J1 572 Crossram HEMI engine Georgia, USA 

High Power -J1 426 1,000+ G3 engine North Carolina, USA 

OEM Style -J1 528 HP HEMI 680 RWHP Missouri, USA