Nathan_H

Hey guys, if you could stroke your stock 302 block, what size would you stroke it to? Personally I'd choose the 347, Nathan

Evil_Capri

Sell it and stroke a 351!!

Like this . . . http://www.mustangweekly.com/2002/february/86/86_1.asp

mr-mstng

...to as many cubic inches as I could afford.

Did that sound obscene or was it just me?

svopaul

Since I prefer Longevity, I prefer the 331 out of a 302 block....done both 331 and 347.

Evil_Capri

If one plans to supercharge, are you still in favor of the 331?

Do the past oil problems in the 347 concern you with regard to longevity?

svopaul

If one plans to supercharge, are you still in favor of the 331?

Do the past oil problems in the 347 concern you with regard to longevity? [/b][/quote]
Yes....definitely. We built a 331 last year with dart sr. heads and a Vortech S trim that made 507 rwhp/496 ft. lbs torque. We replaced a N/A 347 with that combo. The 347 makes good power but it will not last 100K and usually needs freshening at 60-70K if not raced regularly...it's just tough on the 302 block. I also took a standard bore 302 in my LX with GT40 P heads and a Vortech S trim and made 413 rwhp/ 484.6 ft. lbs of torque.....both setups...no exotic parts used(heads, intake, etc). We are now in the process of building a '93 Cobra for a customer and will be using a 331 with Vortech...this time we are going to probably use AFR 185 heads....he wants 450 rwhp....we are going to have a hard time keeping it that low and will probably have to turn the boost down a bit. I've never seen a 347 live as long as a 331 over the past years....it's easy to make power with the right parts/combination but you also have to factor in your useage for the combo...most of my customers drive their cars and they are not dedicated race cars so they want reliability and longevity.

Scothew

Saw and heard the car he is talking about... that thing was a beast!

88blueGT

Yea IMO if I were to build a street car I would go with either a DSS 331 all motor or a 306 turbo. They both would be something that would be reliable and not too bad on the pockets with gas. I mean, they wouldnt be like a Hybrid Civic but they would be bearabel. Theres nothing worse in the world than paying to fill ur tank every day n a half.

Fordracing200

...to as many cubic inches as I could afford.

Did that sound obscene or was it just me?
[/b][/quote]
get rir of the word cubic and their is your profane sentence. Strokers....

Fordracing200

306 or 331 or a 351W become a 408W

future9er24

dude, i would kill for a car like that

love the pre-87 foxes

Scothew

If anyone is curious as to how the 95 that SVOPaul built, here is a vid clip of it running at the shop. This vid does not do the car any justice, this thing sounded like a pissed off gorilla beating on steel drums when coming down the road.

Paul why didnt you kick my tail when I had the chance to trade my car for this one cause the owner was scared of its power :bang:

Right Click, Save As
Please do not share the link out.

Scothew

And here is a pic

svopaul

For the official record a 306 IS NOT a stroker....it is merely a .030 over 302.


Scothew, I will kick you the next time I see you

Scothew

Thanks.

Fordracing200

For the official record a 306 IS NOT a stroker....it is merely a .030 over 302.


Scothew, I will kick you the next time I see you
[/b][/quote]
I know, I know, a 306 is a 302 bored 30 thousandths over, I forget bore and stroke are different sometimes

svopaul

I know, I know, a 306 is a 302 bored 30 thousandths over, I forget bore and stroke are different sometimes
[/b][/quote]

I wasn't just picking on you .....I hear this all the time where people refer to a 306 like its a stroker....you just happened to fall into the line of fire with that correction

88blueGT

what exactally is the difference between boring and stroking than because I always thought that a 306 was a stroker motor... could someone help me out... Thanks.

svopaul

boring is using a machine to cut the cylinder walls larger to fit bigger pistons....this is done to clean up a block during a rebuild for different reasons but mostly because of wear on the cylinder walls.

Stroking is increasing the length of the connecting rod...this requires clearancing of the block...when a rod rotates on the crank shaft is is considered the "stroke" so by increasing the length of the connecting rod you are increasing the "stroke" of the engine...hence the term "Stroking" or "stroker". Most of the stroker kits do require you to bore the cylinders.

Scothew

whatever paul, we all know that engine stroking is when you have the engine on the stand, and you gentely caress it each night before you leave the shop.