# Title Year Make Model Price Photo
1 Up to 125hp INCREASE for your Merc 500EFI $4995.00
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 600hp at a fraction of the cost of total engine ..
2 UPGRAGDE TO A 540 FROM A 502 ATECO Engine & Dyno MARINE $10995.00 w/core
ATECO/Engine Quest New Heads & New Cam Profile with ARP Chromemoly Head Bolts & Heat Treated Washers. We use a hand picked 502 block bored to 4.500", Scat 4340 4.250 Stroke Steel Crankshaft, Scat 434..
3 DON'T TRADE IN YOUR BOAT...TRADE IN YOUR ENGINE ATECO Engine & Dyno $6995 w/core
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 w/550 hp. These meticulously build 540 en..
4 UPGRAGDE TO A 540 FROM A 502 ATECO Engine & Dyno MARINE $10995.00 w/core
ATECO/Engine Quest New Heads & New Cam Profile with ARP Chromemoly Head Bolts & Heat Treated Washers. We use a hand picked 502 block bored to 4.500", Scat 4340 4.250 Stroke Steel Crankshaft, Scat 434..

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