takeoutexodus

Ok , So what would be better a later roller block ? like 90's

or an early stronger block ? 69-80's

these plans are not surpassing 400 hp..

and we are of course talking about a 351w .

is the roller block worth it ? or is it too weak as people may say ?

is there a difference?

this is staying a carburated set up .

thanks

67mustang302

At 400hp it won't matter. The roller block would be preferable since a factory roller setup is cheaper than a roller conversion kit

takeoutexodus

Also, do you know when the 4 bolt mains became the standard thing ?

Or what years it was offered?

Also, do you know if they have any 90's non dual overhead cam 351w's ?

whats the main advantage of a 4 bolt main instead of a 2 bolt.

67mustang302

I don't think they ever made 351W's with 4 bolt mains on factory engines(except perhaps the 5.8 Cobra R's, but I doubt even that). All the Windsor family is cam-in-block, they never had OHC. 4 bolt mains are more stable, but only necessary in very high power and rpm applications. The vast majority of street applications are fine with just a plain ol 2 bolt bottom end. 4 bolt 351W's can be had from ford(Sportsman and 351R blocks) but you're gonna spend over $1,500 for a bare unprepped block, they're good for anywhere from like 800-1,800hp depending on the block

takeoutexodus

thank you very much .

so i guess for an application of around 400 hp all you really need in any block even from the 90's?

67mustang302

Yes. There are people making 500+hp on factory 80/90's 302 blocks reliably, and the 351 block is obviously stronger

Mr. Classic EFI

+1
4 bolt mains?? Ya been readin, too many Chebby magazines.

takeoutexodus

i see i see.

thanks