D&J Precision Heads and Engine Parts



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D&J Precision Machine Stage 1 Cylinder Head

D&J Precision Machine Stage 1 Cylinder Head

Our Stage 1 Cummins Performance Head is a step up in performance without the extra expense and ..

$2,550.00

D&J Precision Machine Stage 2 Cylinder Head

D&J Precision Machine Stage 2 Cylinder Head

Our Stage 2 Cummins Performance Head is designed for the performance enthusiast.  Includes..

$4,750.00

D&J Precision Machine 6.7L Stage 3 24v Cummins Performance Head

D&J Precision Machine 6.7L Stage 3 24v Cummins Performance Head

Our Stage 3 Cummins Performance Head is designed for the extreme high performance.  I..

$6,225.00

D&J 115lb 24v Cummins Valve Springs

D&J 115lb 24v Cummins Valve Springs

D&J Precision Machine HD 115lb 24v Cummins Valve Springs have been proven with years of testing...

$350.00

D&J 24v Cummins Titanium Retainers

D&J 24v Cummins Titanium Retainers

Cummins Titanium Retainers for 1998 and up 24v Cummins cylinder heads. Out titanium retainers a..

$400.00

24v Heavy Duty 7/16″ Cummins Push Rods

24v Heavy Duty 7/16″ Cummins Push Rods

One-piece Cummins push rods for 24V engines. Produced from 4130 chrome molybdenum and heat treated t..

$240.00

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