Dart marine short block 454 or 496 C.I. Balanced and assembled


MKH Dart 9.8 Big M Chevy short blocks are designed from the ground up for hard core racing all the weaknesses of the factory castings have been addressed. Great for naturally aspirated or supercharged applications up to 1000 hp. Dish or flat top pistons available. MKHammer short blocks are brand-new fully machined and balanced. Extra thick decks siamese bores enlarged water jackets Priority main oiling 4-bolt main caps finished main bearing bores and cam tunnels make it a superior racing and performance engine. Internal components: forged scat 4340 4.250 stroke crank Scat 4340 H-beam 6.385 rods SRP forged flat top pistons Plasma moly low tension rings clevite main rod and cam bearings brass freeze plugs. Hand assembled and tolerances for the harsh demand of the performance marine environment. 496 c.i.Flat top pistons 8.8:1 compression w /118 cc heads. Dish pistons 8.1:1 with 118cc heads 454 flat top 8.75:1 w / 112 cc heads. Dish 8.0:1 w / 118cc heads Freight cost apply discount for more than one engine
  • Model: SKU302448

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