Possable 4.5L Build without S2 Block???

[87grandnational]

Hey guys, Ive been doing some research, And I noticed, If i bore out my 3.8 .035 over, and throw in a 3.625 crankshaft, its displacement will be 274ci 4.5L. Can This be done with the standard production block??


Oh, and another question, Lets say I wanted to put on the 86/87 Exhaust manifolds/headers onto my 329 block (84-85 3.8 block).

And Put the intake manifold/Throttle body from a 86-87 TR on it too.. could I do this? And just put the intercooler in the stock location? Would there be any problems? Would the Manifold fit? What would I have to move?

Deffentaly Answer The First 2 questions. The thrid is just some bull**** I thought up

I got an Idea, while I was attending a siminar on AC Systems for a car. I was sitting here and it hit me... Freyon is COLD....

What If I was to take a pipe, then take another pipe that was a bit bigger and slide over the first pipe (Like a 2" and a 3" pipe) And stick the smaller pipe inside the bigger pipe put a few spacers in the pipe. And then weld the pipe together (so it makes an air-tight seal) Then drill a hole, And use a special fitment, Then use a R134A Machine to pump freyon into the pipe and compress it so it stays inside the pipe.. Then the pipe will become ICE COLD forever due to the freyon inside... This could be used for intercooler piping. What do you guys think of my idea? Could it work? If it could... then I am a genious.. If it dont... Then at least I threw it out there and gave it a try..


Answer back to this one if you think it could work. Thanks

- Cody
- 84 GN

 

[750H.P.V6]

Cody,

I'll answer your primary question and I'm sure someone can chime in on your other follow up questions. To get a 274" displacement from a Buick V6 you'll need a 4.1 block with a 4.0" bore and a 3.625" stroke. You can't build a 274" engine with a 3.8 liter block.

Neal

 

[87grandnational]

You destroyed my hopes and dreams



nah im just ****ing with ya, I wasnt sure if it would wokr or not, so thanks for the advice, Now, were could I find one of these 4.1 Blocks everyone is talking about. Are they the SY/TY blocks? or are the ST/TY 4.3s? Im not too sure.

- Cody
- 84 GN

 

[750H.P.V6]

Sorry.

Neal

 

[86brick]

Actually a 3.835" bore w/ a 3.625" stroke comes out to 251ci or 4.11 litres of displacement... The most you could get out of a production 3.8 is 255ci and that would be with a .060" over bore and a 3.625" stroke... Sorry to burst your bubble

-EDIT

Just seen Neal filled you in.....

 

[87grandnational]

damn,,.. alright, now what about the other questions, regarding the exhaust manifolds for the 86-87 swapped onto the hotairs. with the Intercooled Intake manifolds?

Can I swap the manifolds (intake and exhaust) Onto the hotair block?

- Cody
- 84 GN

 

[750H.P.V6]

Cody,

To answer your 2nd question; Yes you can put 86/87 manifolds etc on your hot air car to convert it. Many people have done this before. FWIW, the DS header is the same only the passenger header is different.

Neal

 

[87grandnational]

750HP v6 You are a LIFE SAVER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


Thank you so much! Now, Instead of the full swap, Im just doing the manifold/header swap...

god you saved me so much money!!!

Thanks buddy


- Cody
- 84 GN

 

[broke1]

You cant do 1/2 the swap,its all or none.HTH

 

[DR BOOST]

make sure to drill and tap an oil return line on the front of the block

 

[87grandnational]

Were would be the best place to do so? My friend with a GSX eclipse drilled his in his oil pan, (I realizes that both cars are totaly different) could i use this place, send me some diagrams.

Or something. thanks

- Cody
- 84 GN

 

[Shane]

I don't know so much about the blocks, but about the freon in short it wouldn't work.

AC Systems are all about energy exchange. Basically, the compressor compresses the gas which adds negative potenial energy to the freon at the same time creating heat. The freon is then allowed to expand which absorbs local heat in the air cooling it off.

To make an uppipe like that, you would have to have a compressor and a condensor. It might work, but it seems like way too much work to go to to get the minimal gains that you get from icing the intake.

HTH

 

[87grandnational]

TTT