Diesel Engineering is a family-owned business located in western Massachusetts. We specialize in the rebuilding of AMBAC (formerly American Bosch) M100 heads and rotors, Stanadyne heads and rotors and the manufacturing of high-performance tractor pulling M100 heads.
M100 heads and rotors
HD 9421 (9mm H&R)
HD 9422 (10mm H&R)
HD 9423 (10mm H&R)
HD 9454 (10mm H&R)
M100 tractor pulling heads and rotors
These heads are also modified for faster filling at high RPM.
11mm head and rotor
13mm head and rotor for stock cam
13mm head and rotor for high lift cam
Stanadyne DB style head and rotor assembly
DBG - 6.330 Stanadyne part #18770
DBG - 6.370 Stanadyne part #20540
DBG - 3.310 Stanadyne part #19934
DBG - 4.310 Stanadyne part #18781
DBG - 4.290 Stanadyne part #20478
All our fuel injection heads and rotors are supplied with new plungers, rotors and sleeves. Plungers are made in the USA. No chrome plating is used. Heads come with a full one-year replacement warranty.
Other capabilities: High-precision grinding, lapping and measuring down to the 0.000010".