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Joined: Dec 2003
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From: clearwater
Car: trans-am
Engine: tpi
I did a master rebuild kit, new drum, and bought a new "super pump" instead of trying to build up the old one. I finished the shift kit and got a Vette 2050 stall converter. It should work out real nice. I hope to get my heads back tuesday, I am having bigger intake valves put in.
Last edited by 83ho86tpi; May 15, 2005 at 11:22 PM.
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Joined: Aug 2004
Posts: 4,168
Likes: 3
From: Marietta, GA
Car: '91 Firebird Convertible
Engine: 305 TBI (LO3)
Transmission: 700r4, Vette Servo
Axle/Gears: 3.27 9 Bolt, PBR disks
Well, I'm glad I caught this thread before the mods have a field day. 
Looks nice. I can also say that color of that car the engine is sitting next to looks mighty fine too.

Looks nice. I can also say that color of that car the engine is sitting next to looks mighty fine too.
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Thread Starter
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Joined: Dec 2003
Posts: 402
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From: clearwater
Car: trans-am
Engine: tpi
good old gm blue 500F hi temp paint from advanced auto, I forget the brand name, I will have to look at the can. It is supposed to be the same color as the early 80s blocks in 3rdgens. Oh yeah, I do have a question....
The flexplate for my 84 305 is smaller than one for a 84 305 chevy van, and the starter is a little different. The both were lg4 blocks and had a 700r4 transmission. Whats the deal?
I had a new 305 van flexplate leftover that I was planning on using.
The flexplate for my 84 305 is smaller than one for a 84 305 chevy van, and the starter is a little different. The both were lg4 blocks and had a 700r4 transmission. Whats the deal?
I had a new 305 van flexplate leftover that I was planning on using.
Last edited by 83ho86tpi; May 16, 2005 at 09:36 AM.
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Joined: Jul 2004
Posts: 1,840
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From: Tigard, Oregon
Car: '86 Berlinetta
Engine: 350
Transmission: 700R4
Your 84 f-body flexplate and starter should have less teeth, thus why it's smaller than the Van's... I'm not sure if a van bellhousing will fit in a f-body though, I think I read something about the f-body needing a very small bellhousing to fit under the car.
Something to look up I guess.
... btw why would the mods have a field day w/ this topic?
Something to look up I guess.
... btw why would the mods have a field day w/ this topic?
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Joined: Dec 2003
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From: clearwater
Car: trans-am
Engine: tpi
The 700r4 transmission is a direct bolt up to both 305's it kinda looks like the same size I think, it was even the same length, the only difference is the style of tailshaft. I decided to go with the flexplate size that the TA came with. I would investigate further in hopes of a better balance, but I cant imagine why the bigger one would be much better.
Last edited by 83ho86tpi; May 18, 2005 at 03:08 PM.
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Joined: Dec 2003
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From: clearwater
Car: trans-am
Engine: tpi
looks good, but .....OOPS!!!! I didnt notice that I put the top pulley on backwards till I saw this picture, I must be working to hard.
Does anyone think I will have clearence problems with these 1.52 rockers and stock valve covers?
Does anyone think I will have clearence problems with these 1.52 rockers and stock valve covers?
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Joined: Dec 2003
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From: clearwater
Car: trans-am
Engine: tpi
Originally posted by AsphaltAssalter
I would have done some unshrouding on the cylinder head chambers when those big valves were installed, looks like that's going to hurt the flow some.
I would have done some unshrouding on the cylinder head chambers when those big valves were installed, looks like that's going to hurt the flow some.
My new cam gives .449 .456 lift so I didnt think that would be enough for shrouding.
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Joined: Aug 2004
Posts: 66
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From: Alabama
Car: 92 Camaro
Engine: 305
Transmission: T5
That's even worse that you have a small cam, shrouding will be worse at low lift because the valve can't get away from the edge of the chamber at low lift. Look at this pic of a head that has had the valves unshrouded and you will see what I'm talking about, then look at your head.
Last edited by AsphaltAssalter; May 23, 2005 at 06:31 AM.
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From: clearwater
Car: trans-am
Engine: tpi
Hmm, the machine shop did remove some chamber material around the side of the valve, I just thought they were sloppy while cutting the bigger seats. Did they do this to deshroud it? or just for clearance?
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