Big M Sportsman (4.500 x 10.200) Product Description:
Bore Size: 4.500 Deck Height: 10.200
The Big M Sportsman block was designed to be an even more affordable version of our highly popular Big M. The Sportsman block is fitted with ductile iron 4-bolt main caps, and feaures a redesigned lubrication system that oils all of the main bearings before the lifters for extra reliability. We added two slotted head stud bosses on both sides of the lifter valley so you can use studs instead of hard-to-install bolts to take the place of the “missing” head bolts. With available deck heights of 9.800" and 10.200" and bore sizes of 4.250", 4.500" and 4.600", the Big M gives you the versatility to build a wide variety of engine combinations.
Your block can arrive ready to assemble with freeze plugs installed, camshaft bearings installed and the cylinder block machined to your specifications. Please contact us regarding pricing for this additional feature.