98itrwhite

i know this is prob. a dumb idea and question but what about this with a set of heads. and then we can keep our 330 motors togather for a reliable back up. it seams pretty reasonable but its an auto engine but it is a 4 bolt with forged internals.http://cgi.ebay.com/ebaymotors/ws/eB...tem=4593062770

z.zuperboat

Dont know your budget but I have a 540 that makes 625hp @5750 with only 23 hrs on it for $6000, Built by pros not in some backyard garage. With dyno sheet. Flame arrestor to pan . NO exhaust. On longisland.

ECeptor

Damn...if this was December 2006 you and I would be dealin'.

Too much too soon for my boating budget. Gotta upgrade the tow rig first - must be patient....

Longrange4u

Wow... 6k in one shot would be a little more than the Army sets me up for. I may have that saved after I come back from Iraq this time around... Thank you for the offer!! And boy would that have been an awesome offer!!!

Nobody answered my question from the above ebay rebuild kit... would that work?

PS: Thank you everyone that is giving me feedback... this old troop appreciates it!

ECeptor

You should see what you can sell your 7.4L as is. There's a decent market for those engines if they are stock. If you could get $2k out of that, that leaves a balance of $4k.

Don't forget a decent set of ready to install BBC heads are $2k.

Also, my new job is designing and building hardware to help keep you boys "over there" safe...safe and armed!!!

Longrange4u

Ok so someone please explain the difference between Marine engines and Normal.... Can I buy a normal shortblock and put my marine stuff on it?

Thanks guys!!!

ECeptor

search this forum for "crate engine" and you'll find tons of threads on the subject.

z.zuperboat

If you want to build it yourself be prepaired to do it alot. You will have alot of down time and after doing twice how much will you have saved ? All parts and builders are not created equal. You need a builder who does performance marine engines. Anybody can build a big block and have it last for years when the rpm only goes to 3500. 5000 rpm you need a pro who knows the rite parts and installed at the rite tollerences for a marine motor ! For an example try running your car engine at 5000 rpm towing your boat up hill for 30 minutes and see what happens. THATS THE MARINE WORLD

KAAMA

iTrader: (1)

Well said Z. Engines destined for marine use are in a whole different world of their own.

Big Block Billy

That e-bay motor is a good deal, but the pistons have too much dome. 10-1 is too high of compression. 9.4 or 9.5 -1 would be ideal for 93 octane pump gas . I've had trw 2349 pistons which are 10-1 on an open chamber head, milled down to create a piston somewhere between the trw 2349 and the 2399. I did this on two motors. Mostly because I got a great deal on the pistons. Another hot way to go would be to run the higher compression motor, and fuel blend racing fuel. One 55 gallon drum would probably last all season, Ie. 85 gal. tank, 15 gal race fuel 70 gal gas. A 55 gal. drum of race fuel would probably cost $400. BBB