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View Full Version : Any boosted 347 2 bolt blocks out there?



Telsite
11-28-2014, 09:48 PM
Like the title says. Anyone on here have one?. If so whats your combo and boost level and hp?
I'm looking for 550-600 rwhp and not sure about doing it with a 2 bolt main block.... Thanks any help would be great

HyperGT
11-29-2014, 10:21 AM
you mean stock 302 stroked, dont do it. My 331 w/strim and 8-10lb made 511...that was too much for a stock based block iMO. I only did it because i wanted to keep boost down, revs down and make decent pwr, never again. If you want over 450 I would only go 4 bolt. Period.

Telsite
11-29-2014, 02:48 PM
I have to agree I dont think i will. But soo many people with nothing to risk tell me to do it. I currently make 492 rwhp from a stock 302... I ran 11.3. I want to get my car in the 10's with my current set up and the way i drive it. So i figure i will need another 50-60 rwhp to do this consistently. So before i made a decision i was curious who if anyone has done this successfully.....

tulowd
11-30-2014, 01:06 AM
My bud made 568 rwhp with a blown stock block 306 with alu heads on DaSilvas dyno. Car ran 11.99 at 126 first time ever out - coupe/ full street car on drag radials. Popped head gaskets 3 x and never really beat on it with sticky tires; just lots of roll on stuff, no launches.

If you launch really hard you will likely eventually break something in the engine, even at your current power level.

Intmdtr
11-30-2014, 06:58 AM
depending on your current setup, suspension, drivetrain, seat time....you may be able to dial in the suspension some more with different parts and perhaps help you pick up the extra .3 you are looking for.

Wyld
11-30-2014, 01:29 PM
Bad idea, it's only a matter of time until it lets go. I ran 11.3 with 433rwhp so it sounds like with a little setup and maybe some weight reductions d practice you should get there as it is now.