th350... how many hp?
Thread Starter
Burning Brakes
Joined: Jul 2006
Posts: 833
Likes: 4
From: Mexico NY
th350... how many hp?
How many HP could one expect to submit a th 350 to....
...I'll add......
medium-abusively (smoke the tires here and there once or twice a month.. Mainly hobby cruzing though.
I have a line on a 400 hp sbc (pre-86)....
...I'll add......
medium-abusively (smoke the tires here and there once or twice a month.. Mainly hobby cruzing though.
I have a line on a 400 hp sbc (pre-86)....
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Is it a stock, 30 year old TH350 with no history of a rebuild?
I wouldn't give it more than 300 HP. If it's been rebuilt for strength, probably at or around 500 HP.
Instructor
Joined: Dec 2006
Posts: 158
Likes: 0
From: Tustin CA
I have been searching around for the same thing and it seems that if it has a "mild" rebuild it is good for 275 hp, an "aggressive" rebuild will be good for 400 hp and a "race" rebuild should but it at 550 hp. I was looking into doing a TKO swap to get a stronger tranny but when I found out a rebuilt TH 350 could handle so much hp and the price is like 1/5 less, I decided that would be a better path.
Le Mans Master
Joined: Oct 2006
Posts: 7,123
Likes: 433
From: Gladstone MO
C3 of Year Finalist (appearance mods) 2019
I built a 350 for a guy 10 years ago that's raced every weekend- no street at all. Behind a 455 in a '67 GTO. Used the right parts, he keeps a good eye on the fluid (Dexron III).
Durango is correct- A 400 will handle a whole lot more than a 350, regardless of the parts used. But it takes 25-30 more HP to turn.
Personally, with the gas prices like they are, I'd look really, really hard at either the 200-4R or a 700-R4.
Durango is correct- A 400 will handle a whole lot more than a 350, regardless of the parts used. But it takes 25-30 more HP to turn.
Personally, with the gas prices like they are, I'd look really, really hard at either the 200-4R or a 700-R4.
Thread Starter
Burning Brakes
Joined: Jul 2006
Posts: 833
Likes: 4
From: Mexico NY
Sooo..
Not too worried about fuel pricing.. I work for A rather large oil company.
Do you think it would be safe to say that my bone stock 20 year old 350
would be ok with a new intake / heads carb? putting me at 250 hp?
Do you think it would be safe to say that my bone stock 20 year old 350
would be ok with a new intake / heads carb? putting me at 250 hp?
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
