How many ponies can be gained by doing the 347ci stroker kit to the 302 block????:shrug:
347 Stroker Kit???
- Thread starter Mr. 93Cobra
- Start date
Just adding the stroker kit without upgrading other areas of the engine (intake, heads, exhaust) will only net you maybe 30 - 40 hp (if that). MM&FF did an swap a few years back on a 5.0L GT keeping the stock heads, intake and exhaust and installing a 347 stroker kit. If I can find the article, I will tell you which issue and the exact hp numbers. With the right parts, 500 hp from a 347 is not a problem.
Just remember, speed costs money, how fast do you want to go?
Just remember, speed costs money, how fast do you want to go?
I personally would go the 331 route.
Most 347's have issues. I remember that article in MM&FF... If you're gonna stroke it, plan on at least heads and possible intake work or swap also.
Most 347's have issues. I remember that article in MM&FF... If you're gonna stroke it, plan on at least heads and possible intake work or swap also.
347's are nice, might be a bit much for the street and reliability. Checkout some of the problems associated with the longer stroke and the positioning of the rings on the pistons. This was a problem a couple years ago, I haven't followed closely enough to know if they found a good solution around the ring ride heigth yet. Make sure you build your engine as a package, a killer 347 short block can be wasted unless you use a nice head and intake combo..
dewayne patters
New Member
go with the 331.i had a 347 not real good for the street to much rod angle rings where fast.
hey red93cobra1223 you got a 93 cobra and live in arkansas?
dewayne patters
New Member
ya fort smith.
what color is yours and what interior you have? mine is vibrant red with opal grey leather! whats your e-mail address?
dewayne patters
New Member
mines red with grey leather also no sun roof thow.[email protected]
what all is done to yours?
331 here.
Mr. 93Cobra said:
Why are you going to 347?
If you're going to rebuild a stock motor, a 347 is a great idea.unibager said:
As long as your not too attached the the stock heads/cam/intake they can make a streetable 450hp. Even if you keep the stock stuff, the extra torque of the stroker is worth it. :burnout:
And the 331 is a good motor, but I'd go with a 347 too.
-J
500?..N/A...I hope you guys are adding nitrous or some other power adder..
the fastest 347's (N/A) out there are usually 430 to 460 RW....enough to get any foxbody into the low 11's, high 10's with the right suspension...
I say go 331 and port the shit out of your intake and stock heads...yiou'll pick up 40 to 50 RW at the most.....
the fastest 347's (N/A) out there are usually 430 to 460 RW....enough to get any foxbody into the low 11's, high 10's with the right suspension...
I say go 331 and port the shit out of your intake and stock heads...yiou'll pick up 40 to 50 RW at the most.....
right now i am using a 347 but havent driven the car yet...still waiting to see what she can do
jordan0806 said:
I was talking a streetable 450 flywheel hp. It is very possible if you know what you're doing. I agree that 500hp out of a 347 is pushing streetability pretty far. I have a 530+hp 427 and I like it. :coolman:
As far as the 331 goes, look at your sig.
That's torque and I'll take the 347's extra torque all day--it'll make 20+tq over a like 331.
-J
Don't beleive the magazine hype about 331's being better than 347's. Times have changed and they have rectified those early problems. I'd go 347 and never look back.
I have a 347. It will be expensive to get the combo right. Don't get 1 5/8" lt headers definitely go with some quality 1 3/4" headers. With the right heads, intakes and cam it seems that people are getting around 400 to the tire N/A.
If you want to keep your stock stuff with some head/intake porting work I think you could put around 300 to the ground pretty inexpensively. That's 60-70 more than they put down stock.
If you want to keep your stock stuff with some head/intake porting work I think you could put around 300 to the ground pretty inexpensively. That's 60-70 more than they put down stock.
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