just getting a heads up on what i want to do with my stang in the future, this car will be driven everyday and proabbly a few times a month at the track...no street racing!!! so i would be better off going with a 331 or a 347?

so the question is 331 or 347 and why? i can both kits for nearly the same price...

thanks guys
Don

[dcm4136]

I am a fan of 331's. You don't have problems with the oil control rings like you do with the 347, but a 347 has more cubes so could make a little more power with the same setup. I say go with the 331.

[Hammered]

like they say...there is no replacement for displacement...but i'm not sure i would have either for a daily driver. I would go with a built 306 with a power adder....angel is running 8's on a 306...with a HUGE power adder...but you get my point

[enouf4u]

Originally Posted by dcm4136

I am a fan of 331's. You don't have problems with the oil control rings like you do with the 347, but a 347 has more cubes so could make a little more power with the same setup. I say go with the 331.

same here 331

[12second5.0]

331.Plus if I'm not mistaken the block doesn't have to be clearanced.So that means less machine work.

thats right, there is no clearancing of the block with the 331......

i think this is the way i'm going to go...when i get home of course...it all comes down to being able to get off this island and get back home lol.

[swtguy]

393 :woot:

[dcm4136]

Originally Posted by swtguy

393 :woot:

[Cammed95Z28]

Originally Posted by swtguy

393 :woot:

fuel injected with AFR 205s :fruit2:

i would take just 351 over a 331

you need a few parts for the swap
headers
distributor
balancer
351 lower intake
accessory bracket
notch the batterry tray
extend the rubber hose on the fuel rail (simple)
oil pan
longer serpentine belt of course
crank pulley spacer 30$

thast mostly it.

but you are getting a stronger block with a much longer life and better rod ratio than a big 302 stroker.

fitting undder the stock hood is dependent on which intake and whether you use dropped motormounts


www.coasthigh.com
check out their 351 and 351 stroker shortblocks

[flamed90fox]

331 or 306 ,,with a stock block ...i have had bad luck with 347's on a stock block but good luck with after market blocks dart ect ....just depends on your buget ...be aware more stress ,the longer the stroke... how serious do you wana go $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$

[Allnuts]

I have a 347 with 6k miles on it with no problems. I guess it just depends who builds it, mine was built by Livernoise.

[flamed90fox]

Originally Posted by Allnuts

I have a 347 with 6k miles on it with no problems. I guess it just depends who builds it, mine was built by Livernoise.

i built a 347 2years ago for my street car. with the same block you have ,,sportsman ,,ive got 62,000miles on it and is going strong.ive built many others with after market blocks no problems so far ..did a lot of stock blocks and everyone of them split down the middle ...almost bankrupted my ass