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Old 05/11/04, 05:51 PM   #1
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Who makes the best 302 to 347 stroker kit & where to get it?

In the next few months, I will be getting the engine and tranny rebuilt. I am thinking of getting the 302 stroked to 347 for some extra power. Who makes the best kit and where do I get for a good price? I want to keep the 302 because it fits and I don't want the hassle of finding a 351 or worring about cores.

Anyone help here?
Old 05/11/04, 06:30 PM   #2
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Coast high performance in California makes some nice stuff and they use mostly Probe industries parts. Pick up a Muscle Mustangs / Fast Ford magazine and you will find a LOT of people selling kits.
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Old 05/11/04, 10:50 PM   #3
Jeff B
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Anyone else have any suggestions?
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Old 05/11/04, 11:10 PM   #4
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Last edited by erock; 05/13/04 at 11:02 AM..
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Old 05/12/04, 07:21 AM   #5
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Ford- 351W
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Old 05/12/04, 07:40 AM   #6
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Thumbs up

If you are going to all that Y not just build a good 351W and be done with it you can have more HP and more torque and it will be less $$$$ good luck with your choice. Bill
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Old 05/12/04, 08:42 AM   #7
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The 351 is a much better choice then a 347. It isnít about the 4 cubic inches either. Itís about the bigger bearings, bigger main bolts, bigger head bolts, longer rods.

There are reasons ford went through all the development to make the 351 instead of just throwing in a different crank in the little 302. If the 347 was such a great engine, Ford would have saved millions by not developing the 351 and all the refinments that go with it.

there are places that a 347 are good. If you have a late model mustang and have a bunch of money tied up in external parts for the 302, if you are wanting to make a sick little sunbeam tiger, doing a 5.0 ranger, basicly a tight engine compartment that wonít fit a 351.

Whatís better, an engine that is stressed to the edge of its life or an engine that is basicly stock? and they make the same power...
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Old 05/12/04, 09:02 AM   #8
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But a 351W won't fit under a stock hood, no body lift with SEFI will it?

1977 stocker sport, try number 2 get painted
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Old 05/12/04, 10:51 AM   #9
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My 408 is all coast/probe stuff. I have been very happy with the motor and their parts. Good stuff.
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Old 05/12/04, 06:58 PM   #10
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Okay, for the 351W fans I certainly see your point. It's more hassle for sure but probably worth it in the long run. So, my next questions would be, what's the best choice from here?

Get a crate motor (where to get it?) or find one in a local junk yard and have someone rebuilt it?

What should I watch out for if I have to buy a crate motor or search for one in junk yard?

Thanks again.
Old 05/12/04, 07:06 PM   #11
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347s have the piston pin up under the oil ring groove. It's not a problem if you're running a mustang race car that you tear down every season, but in a hard pulling daily driver it will use oil excessively. If you are intent on one, I'd go with a 331 from Central Coast Mustang. They even have package deals with GT40P heads and such. They are located here in Cali as well, and are really nice folks to work with.
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Old 05/12/04, 08:35 PM   #12
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Probe has taken the oil burning into account and designed their pistons around this
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Old 05/12/04, 11:03 PM   #13
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it would be easier to steer you toward a good shop if you posted your location. I would go with a rebuild before a crate. Crate motors are good if you buy the high dollar or factory ones but they usually come with a higher rpm cam in em. The people I know who bought the cheaper crate motors from like kragen or economy places had alot of problems getting one that runs right.
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Old 05/13/04, 11:33 AM   #14
70 EB Chicago
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I am also trying to decide what to do with my engine. I have been waiting for a number of months to make a decision, but can't commit to anything. I have a stock 302 and have been considering having a crate 302 remanufactured dropped in. Because I live in the city and can't do it myself, I like the 7 yr warranty I can get with the crate (and hopefully few hassles). Hopefully I can find a shop in Chicago that knows what the hell they are doing!
Old 05/13/04, 12:53 PM   #15
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As far as I know, Coast High Performance is the only one who has done anything about the oil consumption issues. They run a short rod (5.315" instead of the normal 5.400") then the other 347 strokers. This allows them to gain enough room for a real oil ring.

Personally I don't like short rods, I am running a long rod (6.120") in my stock stroke 351. The 5.0 Stroker I will be building soon for a Ranger (difficult to package a 351 in there) will only be a 331. One of the reasons I really like the 331 is that I get almost 0.400 longer rod and ľ" of stroke over the original 302.
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