hallo
I need 2 engines for my sonic 35 ss.A guy in Germany have 2 525 sc,but its not original Merc, he declare it is built from the same block as the merc use.How can I check
what????serial nr??? He can also sell only the 2 blowers. Is it suitable to put a blower from a sc 525 to a 502 425 HP. Anyone know 2 good Engine 4 sale to a good price. +´500 HP Regarda Göran Abrahamsson Sweden

Weiand 177 is a little small,you'll have to turn it 10 % faster to make same boost as what it would make on a 454 which will create extra heat,it will work if your not looking for much boost but if you want a considerable amount of boost you will really have to pulley them to the moon which will create tons more heat and shorter durability. I'd look for some b/m 250's or bigger,Smitty

I have a pair of 525EFI (Mercury Originals) with transmissions and headers for sale model year 2003 with approx 220 hours. Engines need nothing. Will deliver to the Port of New York, crated in boxes for $38,900 US Dollars.

Ray
e-mail: [email protected]