Brand new from CMI. Bolt on performance for your Merc 454/502. No additional custom tails to buy. A true plug and play system.
Mandrel bent and formed from High Quality 316L Stainless. 1 7/8" I.D. Pri..
Our High Performance proven ATECO/DART Pro 1 Aluminum Marine heads have the combination to maximize your engine's horse power. Take your 500 EFI up to 625hp at a fraction of the cost of total engine ..
Spring Special!! GEN VI 540/550HP Marine Engine. For a limited time we are selling this reliable, true Marine engine with top quality parts, for our OSO friends. DART Block & 308 Iron Eagle Heads, SCA..
Now's the time to upgrade your tired old 502 for the 540 you've always wanted. Exchange your 502 for a reman marine engine with a Scat 540 rotating assembly with 550HP. These meticulously built 540 en..
New ATECO/Dart Gen VI 540 Short Block for a Blower Engine. Parts Include: DART Gen VI Block, DART Cam Bearings, Brass Freeze Plug Kit, JEP Inverted Dome Pistons with JE Piston Rings, SCAT 4340 4.250 ..