1975 1/2 TOn Pickup

[King_Cobra]

Is it unusual for a 1975 Chevrolet 1/2 Ton pick up to come with a 12 bolt rear end in it from the factory. Because my pick up has one and I was wondering if it would hold up against a 900 horse small block 350. Or would the torque from the 350 damage the 12 bolt? The 350 has been bored and stroker to 454 if that helps any.

[chevy68388]

ok yes its stock i have a 12bolt in my 79 but one thing its not going to handle 900hp and how in the hell didu make a 350 to a 454 i kinda think u are bull****ing cause i have a 350 bored .60 over with a 400 crank and its only 388 and as far as i know thats as big as u can go

[Big69C20 Toy]

I suppose theorhetically it's possible with enough overbore and some MAJOR stroke. Never heard of no 454 outa a 350, but 900 ponies and similar torque will bust a 12 bolt, gotta get a nice beefy aftermarket axle, i dont even think a big ole 14 bolt will hold 900 well under HEAVY loading.

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69 Custom 20, 396BB,Longbed fleetside.
New Oak Bed With SS strips... damn nice.

Edelbrock performer RPM-O, Edelbrock 750Carb, Headers, HEI, 2 40" glasspacks.
Stereo: Classic-style tape deck/radio, 2 6x9 Cerwin Vega's in doors, 2 10" Neo subs under seats, 1 900 Watt amp.

SN= Ares220

[SCOTI]

10" tire classes use 10 bolts that can handle the power so a 12 bolt theoretically could also but the catch is applying enough power to effectively move the car w/o destroying parts or blowing the tires away. The way these cars move down the track is a science as well as an art form. Dave Henninger(sp?) use to campaign a 70 camaro w/fi small block then went to a 6cyl w/juice to take advantage of weight vs. power adder in that particular class & both combos utilized a 10 bolt & made similar power.

[King_Cobra]

The 350 that I turned into a 454 was a custom made LS1 engine that has been selling for $3,600 I don't remember the exact bore and stroke but I will have to find it sometime.

[slam33]

First off your not going to get 454 cube out of a small block and spend under $4000. You can't bore the holes that big and find a crank with that big a swing that will clear the block. Even if you buy a World or Dart block. Second, unless your building a one run motor, 900 hp is only a dream. To build it, it's going to run well over $10,000. I built offshore BB motors in the 540+ cube size, I've done twin turbo SB, blown SB, and multi motor drag cars, so I think I know a bit about this. If your building a drag truck then you already know that a 12 bolt might handle it if you build it right, but why would you want to run a 12 bolt when you should be looking at a 9 inch Ford. If your building a street truck, and your question suggest your are, then lets stop dreaming and get back to reality, please. Sorry about being a bit harsh but I've been doing this stuff for almost 40 yrs. and I've seen this dream come and go a thousand times.

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71 basic C-10 350. The only option is the rust.No nothing on it, but thats all about to change. <A HREF="http://www.geocities.com/stevemau/slam33page.html?1004806705410

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