Adam123

iTrader: (1)

I'm planning on building a 2000 lq4 truck motor to stick in my 78 t/a. It will be a budget turbo build and I plan on either going with a 4l80e or a 700r4 tranny. Would it be better for me to stick with cathedral port heads or upgrade to the l76 heads since you can by a set from www.sdparts.com for around 700. Either way I'll need an intake and I believe to make the heads work on the lq4 is intake rocker arms and l76 girdle. I may get the ported version and spend more. Or I can get a set of warhawk heads with 72cc combustion chamber for 1350$$ a recommendation a a set of heads would be nice.

Im searching for a good set of connecting rods, and dished pistons. I need to keep my compression ratio to around 9 or 9.5? or lower?
I'm debating on 1 or twin turbos, 1 big one or to smaller ones to spool faster. I'm worried about exhaust manifold back pressure on the .67 turbos if i do a twin set up. Advice?

I will run an intercooler, probably water/to air.
Also which oil pan would you recommend for this engine? I feel I'll need a bigger oil pan with turbos to help keep oil temps down or maybe get an oil cooler?
I'll custom fab my own manifolds for the turbo as I have the shop and equipment to do so. And have access to a mill if need be.
I'll need advice as this engine build progresses.
I would like to know what size injectors would be appropriate, I'm thinking 50+ and what would be a good fuel pump to use? inline or in take?
All advice would be greatly appreciated and put to good use

shorty(98TA)

you will probably be better served askn these questions in the turbo fourms