351 hp rating?

[projectfiveo]

anyone know have any idea how much HP a 351 carbd bored .30 over would get. Im not sure on heads or cam, but its a budget build so nothing fancy. I would just like 300HP. Whats stock 351's putting out?

 

[92armyGT]

Stock hp ratings for 351W are 136-240. the 240 being the lightening

 

[FastStang91LX]

Compression is low on 351's make sure you have pistons to bumb that up to make more power.

 

[undercnstrction]

i believe the "standard" 351 in later model vehicles were rated at 210. i have no idea what torque ratings they had.

check with smokedya, he's got a 351 and i think it dynoed at 319hp.

 

[stykthyn]

his 351 isnt quite stock.

200 stock 240 for the lightning with the gt40 heads and intake.

 

[projectfiveo]

so would i be better off building a 302 vs 351 then?

 

[stykthyn]

put a bigger intake and heads on and it will destroy a 302.

 

[Gearbanger 101]

You'd be better off spending a few bucks on some aluminum heads a decent intake and high flow exhaust and enjoy that extra 49-cid.

 

[projectfiveo]

So a 351 bottom end typhoon intake, gt40x heads with custom cam And longtubes should be decent hp right.

 

[Mr. Rustypwnz]

port the hell out of that intake too.. 75mm tb minimum

 

[SpartaPerformance]

The cam is key!! When selecting make sure you get a cam that has a power band anywhere from 4,500rpm and no more then 6,000rpm. They don't like to rev as high as 302's due to the longer stroke especially stock bottom end.

 

[Venom351R]

Check sig. EFI though

 

[projectfiveo]

port the hell out of that intake too.. 75mm tb minimum

is the porting something i can do myself? if it just involves porting opend from 70mm to 75 mm i can do that, but im sure theres more to it. if so what should i expect to pay to get it ported?

Im going to get a rebuild kit of course for bottom end. and sug. on type of pistons to go with, going to be bored .30 over

 

[NIKwoaC]

302 parts make 302 power. Go with 185 heads or bigger and definitely a bigger intake. Trickflow makes some good 351 intakes.

 

[S&B]

is the porting something i can do myself? if it just involves porting opend from 70mm to 75 mm i can do that, but im sure theres more to it. if so what should i expect to pay to get it ported?

Im going to get a rebuild kit of course for bottom end. and sug. on type of pistons to go with, going to be bored .30 over

Just save your time and money and do a 408 that will make power and can be set up to run on your EFI system. I have seen some sweet sweet combo's w/ 408's in them.