Big block conversion questions, help me please!
Last edited by TheGreek!; Aug 29, 2016 at 12:52 AM.
http://marchperformance.com/chevy/ch...nt-deluxe.html
Note,it will also support AC with a reverse rotation water pump.
Last edited by SteveG75; Aug 30, 2016 at 10:04 AM.
I apologize for not getting on here to see this. I just got your PM also. I've been concentrating on mine, to get it done as soon as I can. I tried to get it done so I could drive it to work, once, before I retired, and that was Jul 28.
I hope I didn't make you miss the sale. I do have the compressor "C" bracket, but it was on a Sanden compressor, and I'll check to see if it fits. I may still have the bracket on the old compressor that I have in the cabinet, I'll check. I think I have the alternator pulley (2 groove) the crank pulley (2 groove) and I have the mount brackets for the alternator and power steering pump also. How about you send me an offer in a PM? How's that?
I hope I didn't make you miss the sale. I do have the compressor "C" bracket, but it was on a Sanden compressor, and I'll check to see if it fits. I may still have the bracket on the old compressor that I have in the cabinet, I'll check. I think I have the alternator pulley (2 groove) the crank pulley (2 groove) and I have the mount brackets for the alternator and power steering pump also. How about you send me an offer in a PM? How's that?
I did get pics of the parts I have, but I'm not sure how to get them on here, it's different than a few other forums I'm on.

Last edited by USAFVeteran; Aug 31, 2016 at 01:35 AM. Reason: add photos
The Dart has aluminum heads and manifold and with the big hydraulic roller cam Dyno'd at 677 HP @ 5900 RPM. The LSX 454 (Punched out LS motor from GM performance catalog) has 620 HP and requires the GM wiring harness and computer. The Dart is old school and super easy to work on with a Quick Fuel 850 CFM double pumper and dual plane hi-rise Weiand I had on my old LS6-454. The Dart cost me about $10k as I was able to re-deploy my very expensive Lunati crankshaft (turned with new bearings) from my LS-6 454 & my Carillo 7/16th rods. The GM LSX is about $14k with LESS POWER and about the same weight.
The car runs high 10's with Nitto street slick and would run faster if i did not granny shift ( still have original IRS rear end.) I doubt the LSX 454 could get there as fast.
IF YOU WANT A BIG BLOCK GO GM OR GOOGLE "DART BIG BLOCK CHEVY BUILD". Remember: There is NO substitute for cubic inches, turbos and supercharges not withstanding, of course.
The install was relatively easy but I had a shop do it. Everything works, absolutely no issues. Just added a Tremec T-600 5 spd.
You will need to have a shop put a notch in the front of the frame just below the radiator which is what the factory did to make big block fit. Very small alteration and very easy. You will need a big block hood or a low rise manifold if you keep stock hood to make it fit. Otherwise, conversion is no big deal.
Last, no fancy wiring harnesses and computers to EVER worry about.
The Best of Corvette for Corvette Enthusiasts
Last edited by PAmotorman; Mar 30, 2018 at 07:29 PM.
What would the bore, and stroke combination be?
good luck.



























