4.3 Supercharged Chevy

[Qingdao]

And here are the after images. Strait off the gun; haven't polished yet.

[Qingdao]

Now it's official. I'm 100% sealed off from the back part of the car. Got weather stripping, welded in bolts, and all kinds of sealant.

[maytag]

Originally Posted by Qingdao

Now it's official. I'm 100% sealed off from the back part of the car. Got weather stripping, welded in bolts, and all kinds of sealant.

Dooooood...... so wicked cool! Loving the progress!

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[Qingdao]

I put some carpet up. Cut it to size and gave it a good washing. Now I just to glue it in place; oh boy contact cement time.




Since all yall folks been talking about the rear aluminium transmission cover and how its structurally relevant. I figured I'll sub in this piece of square tubing since I can't use my trans cover. I think I'm gonna beef it up a wee bit by making some attachment points on the front of the subframes. Making the final shape a "K".

[Qingdao]

the machine shop is on my engine now


I got my heads back. Lapping in some ole valves







Holds alcohol head pressure... good enough for me.

[Homeoboxter]

Originally Posted by Qingdao

the machine shop is on my engine now


I got my heads back. Lapping in some ole valves







Holds alcohol head pressure... good enough for me.

Good job! It`s interesting that the valves are not symetrically distributed.

[Stroked & Blown]

Intake port design / manufacturing optimization.

[Qingdao]

Originally Posted by Homeoboxter

Good job! It`s interesting that the valves are not symetrically distributed.

Yeah, I do like that about the LS motors, Chevy dropped that shared port thing.


Unfortunately, all that is available for the 4.3 are just factory Vortec heads. I forgot the flow rate, but it boils down to a max of about 50hp per cylinder with stock heads N/A. Not too bad, but that exhaust is definitely a restriction. I just look at the glass half full and say it saves my transmission some heart ache

FWIW my cam is just large enough (212 duration at 450 lift) to give me optimal air flow without being a burden on excessive lift. I should be able to hit a good 7k RPM and still make power.