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Big M Steel Caps (4.500 x 10.200)

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Big M Steel Caps (4.500 x 10.200)

PART #: 31263454

(price subject to change without notice) $2,725.00
Sale Price: $2,375.00
Quantity:

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Big M Steel Caps (4.500 x 10.200) Product Description:

Billet Steel Main Caps

 

Bore Size: 4.500    Deck Height:  10.200

 

Dart engineered the Big M to be the strongest, most reliable, and easiest to build big-block on the market. 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. We redesigned the lubrication system to create a true priority main system that oils all of the main bearings before the lifters for extra reliability. Our stepped main oil gallery (9/16“ to 1/2“ to 7/16“) increases the flow of oil to the crank at high rpm, and our front oil crossover eliminates internal oil leaks around the distributor shaft. The result: more oil at the bearings and pushrods where it’s needed, and less power-robbing crankcase windage. 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. The Big M is fitted with billet steel 4-bolt main caps for ultimate bottom end strength


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