4.3 Supercharged Chevy

[Qingdao]

Originally Posted by 78F350

Looks like a cool project. Lots of the guys on the forum wouldn't touch a $1,500 Boxster, but at that price you've got nothing to lose and a lot of potential fun if you like playing with cars. I'm looking forward to the progress.

2 years ago I wouldn't have either. My wife had an auto and that thing was super fun even though slower than a heard of turtles. That car's gone now its my turn.


Got a bit of inspiration off of YouTube. This guy went ham with the intercoolers. I don't think I'm gonna have to use two belts, but who knows at this point.

https://www.youtube.com/watch?v=L_FRdIjGkgg

^^^ Apparently I'm not the only idiot who wants roots noises emitting from their V6 engine.

[78F350]

I had an M90 that I thought about blowing down into a VW VR6 with. After laying it out and looking at what it would take to do right, I passed the whole project on to someone else.



Do the M90s have a stock mounting on the 4.3, or do you have to fabricate it?

[Qingdao]

100% gonna have to fab.

I was gonna just do a piece of 1/2" aluminium. Tap some holes in the top to bolt the eaton to it and bolt the bottom to match the 4.3 intake. That'll also give the ability to position the snout where I want it in-between the alternator and A/C compressor.


Accessory position is the reason why I've chosen the 96-02 chevy 4.3. The accessories on the 4.3 almost line up perfect with the accessories on the German H6 engines. So all I have to do is break out my line lock crimp tool and fab up some hoses. (that's a big fingers crossed there LOL)



As for engine building I am just going to put a healthy cam in it and some good pistons and rods. Maybe some light weight rockers for show. Nothing too spectacular; I just want about 300whp maybe 350 if I'm lucky. BUT the torque should be to die for.



One question I'm wrestling with is weather or not to buy new springs. I like the stock ride height but I don't know how much the original springs have sagged over the 20 years of life. Especially since this thing has like original struts on it (its a motor boat) so I'm sure these springs might be "sprung out". Just don't know if its worth the cash to toss in some new oem springs.

[Qingdao]

I'm thinking this might be the way to go for mounting the edelbrock (I'm dead set on another eddy) on my Eaton.




The best irony I can think of... using an adaptor that is supposed to convert a carb intake manifold to a throttle body; to bolt a carb to a throttle body. LOL its perfect.


I still might weld up my own intake. Just for fun.