IMCA Modified

(available in 388, 400, 415 ci combinations)

Mullins Race Engines has finally come up with a highly competitive engine package that is going to set the bar high. With our feedback from some of the finest open wheel drivers in the country we have applied this knowledge into this program. We feel with modified drivers in all different sanctioning bodies UMP, USMTS, IMCA, and other organizations that we have the upper hand on this new program. We are going the extra mile by having our valve-train analyzed on a spin-tron machine to offer the capability of turning a higher level of rpms with valve train safety. A spin-tron machine is a way of testing valve train durability. This is NASCAR level information. We have stepped up to do this with knowing the restrictions that IMCA applies on the valve train. With all the R&D and the parts choice we have used we feel this engine is competitively priced with performance that will be unmatched.

Parts List

  • Dart SHP block
  • 4340 crank
  • Scat h-beam rods with arp 2000 bolt upgrade
  • Mullins custom pistons
  • Total Seal custom light low tension ring pack
  • Clevite engine bearings
  • Custom flattappet cam and lifters
  • CV 3/8 pushrods
  • Crower stud mount rockers
  • Fully CNC ported heads with lightweight valves and cutting edge spring and retainer package
  • Matching CNC ported intake
  • Champ oil pan
  • Mullins custom oil pump
  • Cloyes hexadjust timing set
  • ARP head bolt kit
  • Lightweight balancer
  • Mullins billet aluminum custom valve covers
  • Mullins cast aluminum valve covers

Basic Package


Available Upgrades

Oliver rods   $550
Callies crank   $650
Shipping weight: 525 lbs.