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Just a theory at the moment until more is known about the fit. I have the car, my step brother has the motor, we both have some knowledge. So far it looks like an idea to say the least. 455 Rocket Thunderbird, what do you think?
 

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idontlikeyou said:
Just a theory at the moment until more is known about the fit. I have the car, my step brother has the motor, we both have some knowledge. So far it looks like an idea to say the least. 455 Rocket Thunderbird, what do you think?
No way no how... not enough room.... unless you want to cut the shock towers and drive with a teleskope and of course make all custom mounts to fit a horrible GM motor in there.....
 

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idontlikeyou said:
So far it looks like an idea to say the least. 455 Rocket Thunderbird, what do you think?
Sure. It's an idea.

ENGINE SPECS
CAR CRAFT 455c.i.d. 501 HP PONTIAC
Horsepower: 501 @ 5200 rpm
Torque: 575 lbs-ft @ 3600 rpm
Average Horsepower: 463 from 3600 rpm to 5600 rpm
Average Torque: 533 lbs-ft from 3600 rpm to 5600 rpm
Fuel Requirement: 92 octane pump
Red Line: 5600 rpm
Displacement: 469-cid (.060-over)
Bore & Stroke: 4.211 x 4.210
Compression Ratio: 10.19:1

Of course, building the engine would be the easy part.
 

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Well, I'd say since the 4.6 is about the same width as a 460, and the 460 is a lot wider than a Pontiac 455, it would fit width-wise. You'd definately have some hood work to do though. The headers would be nearly impossible to fit in there, and would have to be custom made, as would the motor mounts, transmission crossmember, all your accessories would have to be custom mounted, or else the alternator would stick out the hood. If you want to put a cool, different engine in a TBird, and spend a crapload of money on it, you need one of these:



Who will be the first to guess what Ford engine that is?
 

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that's a ford pushrod engine!!!
 

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JR Tigerstar said:

Sure. It's an idea.

ENGINE SPECS
CAR CRAFT 455c.i.d. 501 HP PONTIAC
he mentioned rocket thunderbird, any pontiac fan knows that a rocket motor is an olds motor.....

good luck on the project, it sure will be difficult, but well worth the rewards!
 

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he mentioned rocket thunderbird, any pontiac fan knows that a rocket motor is an olds motor.....
Olds,pontiac,Buick whats the difference? it's just another name for chevy. Besides pontiac never would have had any good engines if they weren't olds motors. Look at the "bandit" the best motor they put in em was the 403 "olds" engine.
 

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Not necessarily. GM didn't start mixing engines until the 80's. From the 50's to the 70's, a Chevy was a Chevy, an Olds was an Olds, and a Pontiac was a Pontiac. And the genuine Poncho 400 was much better than the Olds 403. You could tell which T/A had what engine by the shaker scoop. The 403's said "6.6" or "400" (depending on the year). And the Poncho 400's said "HO 6.6". The 403's cost less than the actual 400s. If I remember correctly. And of course these are my opinions.
 

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imho, the olds 455 would make a helluva good engine, i have a 1986 olds cutlass supreme brougham with a sb 1977 olds 350R, i had it moderatly modded and ran mid to high 13's in the 1/4, all motor, incosistently due to a crappy turbo 200 tranny, so if you could get it to work that would be an awesome swap, and original, :thumbsup: , good luck.....later'z......:D
 

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Pontiac 455 > Olds 455.

To the guy that said they're all the same...educate yourself. As said earlier, Pontiac made all their own engines until the early 80s when their motor division was axed. Buick, Olds, and Chevy also did.
 

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Full Metal
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pontiac 455 may be better, but his friend already has the rocket motor so all things aside it still is a better motor than the 3.8, and best of all his friend already has it, good luck finding a poncho 455 in good condition and reasonably priced, lol, not gonna happen, and there is a good size aftermarket for the rocket engines, so.....



go for it dude, if it ever happens, be sure to have a turbo 350, or a turbo 400 backing that thing up, lol....later'z......:D
 

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DONT MAKE A HALF BREED!!!!!!!
 

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tailwind said:
Pontiac 455 > Olds 455.

To the guy that said they're all the same...educate yourself. As said earlier, Pontiac made all their own engines until the early 80s when their motor division was axed. Buick, Olds, and Chevy also did.
I sais that because even if the engine itself was different 90% of the parts would interchange.
Not necessarily. GM didn't start mixing engines until the 80's. From the 50's to the 70's, a Chevy was a Chevy, an Olds was an Olds, and a Pontiac was a Pontiac. And the genuine Poncho 400 was much better than the Olds 403. You could tell which T/A had what engine by the shaker scoop. The 403's said "6.6" or "400" (depending on the year). And the Poncho 400's said "HO 6.6". The 403's cost less than the actual 400s. If I remember correctly. And of course these are my opinions.
I always thought the 403 was the best bandit motor But I have never owned one of these cars. A friend of mine owns a few and they like the 403 the best over the 400 they have. Like you said tho could be a matter of opinion. I know there 403 runs out of power in the low 4000 range. It does pull hard through the 2500-3500 range. If you can get the car to hook that is
 

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True, matter of opinion. Of course the REALLY great T/A's came out in the early to mid 70's and had the Pontiac 455's in them. Friend had one in High School. (his dad was the Pontiac Dealer) Man that thing would run! :D:D
 

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Never said they weren't swapping motors. Simply that there is a difference between the brands, even if they are the same size. For example the pontiac 455 and the Olds 455. And GM didn't get in trouble about it until the 80's when they were swapping motors around but not telling anyone. In the 70's you could get an olds 403 in a T/A but you knew when you ordered it that it was a 403 from Olds.
 
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