Find true TDC #1, verify for yourself.The engine was a factory warranty L31 crate motor, so it would have came with a new balancer on it. I can't imagine that the Holly TC has the pointer that far out of whack.
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Find true TDC #1, verify for yourself.The engine was a factory warranty L31 crate motor, so it would have came with a new balancer on it. I can't imagine that the Holly TC has the pointer that far out of whack.
That 4.3L filter is the same filter as a 5.0L or 5.7L G-van. Feeding a 350 it was not too restrictive until 4,500+ RPM. By 5,500 rpm it has asthma though. That is why I searched for a year to find the 454 G-van air cleaner and ducting. Larger filter and a much larger intake duct.I was doing some number crunching, the 4.3 air filter has about 40% less surface area then the one for the 57, then I saw some of the filters had CFM ratings on them ( on the rockauto site) no way would the 4.3 flow enough air at high RPMs.. this will work for idling in the drive way, more of a way of keeping anything from crawling right down the intake manifold. I will need to order some of the manifold fittings for the AC compressor mentioned by other members in this thread and make some new "custom" hoses. I've given up trying to hunt down the P/N's for the Mexican L31/TBI engine. I called a Chevy dealership new Brownsville, TX- they couldn't help me without a VIN.
Yesterday I got the front axle actuator rats nest of a wiring looms cleaned up and routed better, I replaced the backup light switch on the NV4500, so now I have reverse lights. I keep trying to talk myself into dropping the pan and replace the gasket, I've also looked at how much work it would be to drop the front diff and make it easy to change out the oil pan. It's been raining the past 2 days and will continue through Saturday, so not a lot will get done this week.
I never thought to look at the G vans in the RA catalogs, as every other V8 powered vehicle from that era seemed to use the 12" air filter. I also had no idea that GM had jammed a big block into the G vans, that must have been unpleasant to work on! Thank you for sharing your knowledge with me as I figure out this Lego puzzle.That 4.3L filter is the same filter as a 5.0L or 5.7L G-van. Feeding a 350 it was not too restrictive until 4,500+ RPM. By 5,500 rpm it has asthma though. That is why I searched for a year to find the 454 G-van air cleaner and ducting. Larger filter and a much larger intake duct.
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Thanks but I'm ok. I was referring to the AC compressor "manifold" where the hard lines attach to the compressor, I may have caused some confusion by calling it by that name.Do you need pics of how my AC brackets are?