351

OrangeMustangGt · Feb 16, 2006

how much power will a stock 351 block with stock internals hold? assuming good condition?

blksn955.o · Feb 16, 2006

I have heard from a buddy with a gen1 lightning that people on the NLOC and other places say around 600 is the breaking point.

drakesdad · Feb 16, 2006

What's the matter Kyle, You looking to roast "bigger" marshmellows....LOL
I'm still looking for the new burn out vid from you since the Turbo Project......
and so are several co-workers that I have shown your vid.....

BlackVert · Feb 16, 2006

i have a book that says a stock 351 bottom can safely go to 450-500 hp. after that, it says the stock rods and pistons are not likely to hold up for very long.

mricci · Feb 17, 2006

So on the 351 are the internals the weakness? versus the block being the weakness on 302's. I have a 351 sitting out in my shed that i was thinking about putting in my car, so i would also like to know, since i havent heard of anyone breaking a 351 block yet.

loudpedal99 · Feb 17, 2006

Subscribing, although if I build a 351, it'll have good internals. I'm just curious about the block strength.

final5-0 · Feb 17, 2006

Its been a long long time since I was at his site
but
Lido at Alternative had a bunch of stuff about the 351 on his site.

May not be there any more

Grady

OrangeMustangGt · Feb 17, 2006

ok, thanks guys, so basically no more than a 302....not much more anyway. Can anyone confirm block strength?....i was told 800-1000hp.....but is this correct?

BlackVert · Feb 17, 2006

mricci said:
So on the 351 are the internals the weakness? versus the block being the weakness on 302's. I have a 351 sitting out in my shed that i was thinking about putting in my car, so i would also like to know, since i havent heard of anyone breaking a 351 block yet.

i get the feeling that the block is stronger, but the internals have pretty much the same strength as a stock 302

blksn955.o · Feb 17, 2006

The later 351's are weaker...

whoever said that a production 351 will hold 800-1000hp has one hellova good dealer hookup on his goods.

Check out hardcore50.com I think I saw a few posts about this...and that is were I am getting the 600hp number from.

S351R"Animal" · Feb 17, 2006

depends on combo but a good ceiling is 600 rwhp. I have seen people go higher even with a late model (94-96 Block). The tune is critical to how much power these will take. The stock rods are good for 600. Detenation is the killer.

blksn955.o · Feb 18, 2006

sorry off topic but

HOLY CHIT I WANNA SEE YOUR GARAGE MAN...WOW

94Blue302GT · Feb 18, 2006

In my muscle mustang and fast ford mag, Feb. 06:
page 156-157 DSS prices:
Level 10 NonRoller cam block: $725
Level 10 ProBullet (quite stout internals) $2499 (357)
Page 20-21 CHP prices:
Street Fighter GT Shortblock 357: $2099
Pro Street Shortblock 393: $2699

Pretty big prices, and you don't really get much more for buying their better block.
For the internals for the Pro Street from CHP, a 393 kit is 1549, the Street Fighter GT is 899.
I personally plan on buying a 5.4 mod motor once i blow my 302 with the turbo.
I hear the actual block is plenty strong, so i'll just get the internals, girdle, etc. for about a grand instead.
Really, i'd like to go twin turbo v10 out of a F350 or something, but that's for my hot rod project i decided instead.

Green 94 5.0 · Feb 18, 2006

94Blue302GT said:
In my muscle mustang and fast ford mag, Feb. 06:
page 156-157 DSS prices:
Level 10 NonRoller cam block: $725
Level 10 ProBullet (quite stout internals) $2499 (357)
Page 20-21 CHP prices:
Street Fighter GT Shortblock 357: $2099
Pro Street Shortblock 393: $2699

Pretty big prices, and you don't really get much more for buying their better block.
For the internals for the Pro Street from CHP, a 393 kit is 1549, the Street Fighter GT is 899.
I personally plan on buying a 5.4 mod motor once i blow my 302 with the turbo.
I hear the actual block is plenty strong, so i'll just get the internals, girdle, etc. for about a grand instead.
Really, i'd like to go twin turbo v10 out of a F350 or something, but that's for my hot rod project i decided instead.

if you want a mod motor, my suggestion would be to sell your car and get a 96-04 as a starting point.

94Blue302GT · Feb 18, 2006

My car has been wrecked, a total loss, and brought back to life by my own two hands... it ain't goin ANYWHERE. Maybe i could do the mod motor on the hot rod then.... Model A/T Bucket/49 mercury... Ok, so i don't know what it's going to be...
Point being.... make a choice, internals, or whole new block.

Green 94 5.0 · Feb 18, 2006

94Blue302GT said:
My car has been wrecked, a total loss, and brought back to life by my own two hands... it ain't goin ANYWHERE. Maybe i could do the mod motor on the hot rod then.... Model A/T Bucket/49 mercury... Ok, so i don't know what it's going to be...
Point being.... make a choice, internals, or whole new block.

if it is going in the 94, i would go with either a 302 based block or a 351 based block. the mod motor is not worht the hassle in my opinion. the hot rod project sounds like it is going to be badass though. cant wait to see what you decide on.

broken_joke · Feb 18, 2006

i am glad someone asked this because i have been wondering about this for a while.

nmcgrawj · Feb 18, 2006

Whats the "rating" for a stock 302? With upgraded internals, i definately think a 351 would be stronger than a 302.

The hard part is that there is no exact level. Like some say 302's are good to 450hp...but some have one higher. I've heard 351's are good to 600.Not sure if many have gone higher. Im sure you would need really good internals at that point.

But it also depends on how u get there and how good of tune you have. How high you rev and so on and so on. The one good thing with going with a 351 is that u wont have to rev it as high as a 302 to make the same power. And that will help A TON with holding the block together.

How much power are you thinking about trying to make? Once u get there, will that be it? Or would u want more? Reason is, if u're gonna go even higher, then i would save the cash from switching to a 351 and just wait....then buy a Dart block thats either 302 or 351 based, and not have ANY worries about anything.

It depends....

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