360 Hp/tq

[spudsterier]

does anyone happen to know what the stock HP and TQ ratings are for a 1974 360?

 

[65barracudadude]

Yes, I do. It is the same as mine. 245 hp. @ 4800 rpm. 320 ft lbs. torque @3600 rpm.

 

[70aarcuda]

the 245hp number is correct.

 

[pettybludart]

I believe those #,s are under-rated!My 2 cents.

 

[rumblefish360]

They are, in a sense, because it is a ASE (*I think it's called) rating.
That means (For those who don't know) that the engine was dynoed with all the bolt on's, IE; P/S, Alt./ A/C running, etc.........

It is down a few HP from not having it all hooked up and being it is down on Compresion a bit as well. Not a big deal, still strong engines for the era. New smog laws and such.

 

[65barracudadude]

Ya, I think it is like 20-30 hp under rated. At least that is what I've been told.

 

[spudsterier]

ok well thats cool then.....
how well will a set of headers help it?

i just cant wait to see how fast this car will be....
im used to FWD 4 cyl. cars, not a big 'ol V8

 

[rumblefish360]

Give or take an added 15%, perhaps about 280 HP.

 

[spudsterier]

well thats cool then

 

[rumblefish360]

If you mill the heads for some compresion and add a 340 cam, you'll get about 300 HP easy. Swap a cam out for more. You could make 330 + HP while retaining a nice mello idle and high torque all around.