530 hp@5300 and 588 lbs@4000rpms

Dude you are my new hero
I have a 68 Chevelle wich came with a 250.

I pulled the 250 out and installed a GN engine in the car. Now I need to rebuild the 3.8 and have been thinking about going in another direction which was to put a turbo on the 250 or a SBC.
Anyway. Your set up is AWESOME dude.
I have a few questions.
1- Would you make an exhaust and intake manifold for me?
2- How do you think it would run on 93 octane, intercooler and Akly?
3-How much did the complete project $$$$ run you?

Spa make a turbo exhaust manifold & tlowe sells them here or on Ebay.
His intake & exhaust are stock original pieces that are modified I believe.
You can run a larger 3 bolt truck exhaust manifold & connect a pipe along w/tubing to position the turbo where ever you like.

With a mild tune on alky & 93 octane,you should be able to make 350-500 HP depending on all of your supporting mods pretty easy,& this would not a max effort engine..

MBHD

Here is one also.
http://cgi.ebay.com/ebaymotors/SPA-Turbo...emZ320164001492

They are $120 if you can get them from Brazil.

Guys,,,,chime in here on what year truck manifold has the larger exit.

If you have everything set-up nicely & run sticky tires on a daily driver & does not weight too much, 11's can be achieved.

No write up on my car,it's a work in progress,a slow progress ;-)

MBHD

I have two of the 2.5" truck manifolds. One came from a early '70s truck, the other was a new replacement I got off e-bay. I bought the replacement to create a split manifold for my '37 and it may be usefull in a turbo application for the same reasons I bought it. The exhaust outlet sits under cylinder #s 4&5 instead of under the carb flange, and it points pretty much straight down. There is a big flat area under the # 2&3 cylinders that allowed me to build a symetrical split manifold. The 292 manifold besides having the rearward sited outlet, is flat under the carbflange going forward until under the 2-3 cylinders, and it has reinforcement "fins" front and rear.

Having the outlet under 4&5 gives more distance to wrangle the exhaust pipe and the straight down, rather than pointed rearward, doesn't hurt either if you are using one for a turbo placed as in the photos above in this thread.

dave68,
the pic's on ebay are of my motor in my 65 elcamino. i built it from the ground up. i sell the SPA manifolds and cheaper than that guy on ebay. if interested in a manifold PM me. for tech stuff , ask away. tom

Spa make a turbo exhaust manifold & tlowe sells them here or on Ebay.
His intake & exhaust are stock original pieces that are modified I believe.
You can run a larger 3 bolt truck exhaust manifold & connect a pipe along w/tubing to position the turbo where ever you like.

With a mild tune on alky & 93 octane,you should be able to make 350-500 HP depending on all of your supporting mods pretty easy,& this would not a max effort engine..

MBHD