Any motorheads know about blown engines?

[Zoomschwortz]

Originally Posted by wearymicrobe

First post on the asylum but I would have a chat with the lightning guys as they use the bells in that CC motor all the time.

My last boosted project was a 65 cobra with a chevy 350 a 142 blower. Compression was around 9.2 and running about 9 psi with the street pulley. Better equivlent heads and a much more aggresive cam though.

Fuel is going to be your main concern as well as boost bleed off on the street. Cooling in a mustang with that motor and clearance on the top is going to be a issue as well, a extended cowl and a dual fan setup with some careful coolant choices (with a larger radiator) is going to be a must. I had major trouble getting everything to fit in my 67 K code and ended up hack then bar up a good bit out of the front of the car.

Welcome to the Asylum, I feel honored that you would make your first post on my thread. Thanks!

You make some good points.

I have been concerned about cooling and am considering the purchase of 67 or 68 GT350 glass kit with the vented hood so I can get more air into the radiator and also let more heat out of the engine compartment. I may even need to cut the firewall so the heat can go out the cowl, but that will be a last resort.

I'm not sure on what radiator I'll be using, but know it will need to be big enough for a big block and a good high volume electric fan is also a must.
I modified a Flex Lite Black Magic to fit on a Toyota pickup (big time overkill) and love how much faster the engine warms up in the morning and have never seen the temp gauge climb over half way while fully load with camp gear, pulling a boat, with the a/c on and climbing mountain roads in 80 degree heat. I love it.

What fuel were you using?

What heads were you using and were they iron or aluminum?

By "boost bleed off" are you talking about the bleed off from late intake valve timing?

Thanks again.
Ken