how much..?????

[black_ss_blazer]

how much H.P. can my block and crank hold up tooooo..????????

[Sparky2263]

General consensus seems to be 275-325 rwhp. Not too shabby for stock parts actually.

ARP rod bolts would be considered a must when getting to those levels.

Balancing the assbly. and a quality damper would be considered cheap insurance.

[ZR1 S10]

Honestly talking to several 4.3L engine builders. Our 96+ blocks are not good for high hp.

Either an older syty year block (not nessacerly a syty) or one of those fine gm peices!

The crank I've heard up to 500+ Usually Cryo can make it alot stronger also!

[black_ss_blazer]

sooo 600hp on the stock block and crank are outta the question huh..?

[freeky192]

600 horse is not out of the question if youve ever heard the quote "win or BLOW UP"

[black_ss_blazer]

600 horse is not out of the question if youve ever heard the quote "win or BLOW UP"

not looking to blow up.........!!!.......maybe cruise around at 400-450hp...and when the need be, crank the wastegate and peg 600 hp......

[biglouie_underpressure]

not looking to blow up.........!!!.......maybe cruise around at 400-450hp...and when the need be, crank the wastegate and peg 600 hp......
thats why i have a billet 4.00 stroke crank on the way.

[lowriderbowtie]

anything is possible with enough money ;)

[Sparky2263]

2 ways to go fast, cubic inches or cubic dollars. ;)

Or the third way,to go fastest. Use both!

[black_ss_blazer]

thats why i have a billet 4.00 stroke crank on the way.

How much was your billet 4.0 stroke crank......and where did you get that..????

Talked to an engine builder around my area and he said the 2 bolt engine blocks were probably stronger than the 4 bolt if I put dowels (sp?) in and get the billet caps......unless the 4 bolt is a splayed cap, wich would be better than my 2 bolt........said that the 4 bolt non splayed would take "meat" away from the block and make it weaker...........sounds reasonable to me.....anyone else have any input on this..?

[Hammer]

gm performance sells a block, aluminum, that can be anything from 4.0L to 5.0L

it weighs in at a lousey 70+/- lbs.

it is purpose built.... i have not put together a complete engine package but i believe salee chevrolet sells them in some fashion, or can get one for you.

that would be a good place to start, imo.

[ZR1-S10]

I'd go with the splayed 4-bolt mains. With the alm. block wouldn't you have to change heads? The Vega used alm. block and Iron heads and it was a very bad idea.

[Hammer]

I'd probably get different heads if you were going down that road.

[black_ss_blazer]

thats why i have a billet 4.00 stroke crank on the way.

where did you get your crank from...and how much wa$ it..?

[biglouie_underpressure]

where did you get your crank from...and how much wa$ it..?
wouldn't most like to know, with a 4.00 stroker crank and bowtie block will but me a lil over 5.0l . if you want info on the crank pm me.

[biglouie_underpressure]

5.3l w/325ci the only thing holding me up is the block.Trying to find a goodie dash nascar block, if i don't go bowtie.Retail on the block is $3500

[biglouie_underpressure]

I'd probably get different heads if you were going down that road.
for sure! maybe some brodix 23* -8 or 10's

[Hammer]

gm performance or salee must have crankshafts for such ideas?

i could've sworn i've seen 2 or 3 places on the net alone that make them.
you should be able to google them.