I was curious if I should get a 347 stroker for my 89 F-150? I want something that has power, and I think the one I want is at CREB Engineering. I was really curious if anyone thinks Jegs and Summits street/strip motor with 345 HP is worth the $$, or should I go with CREB who is charging I believe $3300-$3800, with near 400 HP? I plan on doing some more research, but I wanted some opinions from the experts here on the forums.

 

Any of the motors would be okay, one thing you want to watch for is if the oil ring (the bottom ring on the piston) cuts through where the piston wirst pin is. If so you will slowly burn oil. Newer stroker kits do not have this issue as they have made new pistons. I would ask this question of any of the company's you buy from. I thik Coast high Performance makes one with the piston corrrectly made. One other thing, you will have to convert your speed density intake system over to mass air, otherwise it will never run correctly as speed density does not allow for mods like this over stock. Good luck, and let us know how it goes.

Brian

 

you can always put in a 351w dss have good motors, thats where i,m getting a short block for the stang from 393ci bullet www.dssracing.com

 

Yeah, I also believe that a built 351w is the way to go. They do great mildly tuned, also, and they're very stong and long-lasting.

 

Yea, but I don't really like the 351W. I want a stroker motor, but I want to be able to get a little bit of gas mileage, hopefully around 8 MPG. I just think that 347 is more reasonable than getting a 393. *I want a stroker motor too, , so just getting 351W wouldn't please me. Does anyone already have a 347 or 393 stroker motor that could give some opinions / insight?

 

I have heard from several sources that most 347 stroker combos are pretty weak. I have heard of a ton of engine failures out of that type engine. The 331 stroker that several of my Mustang friends have tried seems to be a lot stronger. One has a pretty mild setup making around 375 horsepower to the rear wheels. Just FYI.

 

Well, a 351W is a stroked 302.

I though the 347 was a 302 that was stroked and also bored 0.060" over, but I might be wrong.

IMO, a motor that is marketed as street/strip for car applications might be a little too high rpm oriented for a daily driver truck with its poor weight distribution, leaf spring wind up, etc... Unless it's a race truck, you are going to be spending a lot more time at 2,000 - 3,500 rpm than you will at 5,000+ rpm. If I were buildnig a street performance truck, I would look at power figures from 2,500 - 4,000 rpm and give them more weight than peak hp. JMHO.

 

A 351 W is a little more than a stroked 302. The blocks are considerably tougher. They are roughly the same size, but a 351 W will not necessarly fit in all the places a 302 will. A 302 engine has a different firing order than the standard 351 also.