Making a 302 a 347.
Senior User
Joined: Sep 2001
Posts: 172
Likes: 0
From: USA
Making a 302 a 347.
I am looking at taking the '79 302 my bro-in-law gave me and tear it down and put it in my ranger. Here's my question, Should I go back 306 (prolly has to be bored .030 over) or go ahead and install the stroker kit I was looking at in summit catalog. And as far as the head either way I go I was looking at using the stock heads for now just porting them and such.
My deal is once I put the engine in the truck I won't wanna take it back out to work on the crank and such. Any ideas/ opinions on the stroking?
My deal is once I put the engine in the truck I won't wanna take it back out to work on the crank and such. Any ideas/ opinions on the stroking?
Posting Guru
Joined: Dec 1999
Posts: 1,903
Likes: 2
From: Copley, OH
Making a 302 a 347.
You may want to do some more research. 347s have a reputation for being very hard on bearings and conn rods. This is not an issue for racers who do an annual rebuild, but it may or may not be significant to you. If you really want that kind of displacement why not just get a 351? The much better rod/stroke ratio and ready availability of parts make it a better idea anyway.
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Post Fiend
Joined: Nov 2001
Posts: 14,947
Likes: 6
From: Topsfield, MA
Making a 302 a 347.
I've been told a 347 won't make it past 20k miles. I think a 331* stroker kit has a better reliability reputation. If you want more than 331* than get the 351.
*I think it's 331, I know it's three hundred and thirty ...something...but i'm not 100% sure if it's a 1.
Primary rig is Green Thunder:
95' F-150 XLT 4x4, 302, 5 spd, MSD 6A, Flowmaster Exhaust, Sunroof, Clear corners w/ Diamond headlights, CD player with 2 10" subs and some 32" BFG Muds
.
Thats it for now, saving for a stang. Check out my Gallery for a look-see.
Justin - One Happy FTE Member
*I think it's 331, I know it's three hundred and thirty ...something...but i'm not 100% sure if it's a 1.
Primary rig is Green Thunder:
95' F-150 XLT 4x4, 302, 5 spd, MSD 6A, Flowmaster Exhaust, Sunroof, Clear corners w/ Diamond headlights, CD player with 2 10" subs and some 32" BFG Muds
.Thats it for now, saving for a stang. Check out my Gallery for a look-see.
Justin - One Happy FTE Member
