Tech Talk & Articles > GM Cars

Red Hot 350 - On the Road Again

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69DirtyRat:
Could be a combo of things? Do check your hoses, because if they do feel soft then the spring inside has collapsed! Also check you have the right cap on the radiator, it needs the pressure to keep the fluid in! check for tiny leaks from the pipes and radiator and fittings. The other thing is check that the water is actually flowing and not a blockage in the radiator! I'm gunna have to check that on mine too! With newish engines eventually a sludge (I forget the technical term) can form from metal shavings and fillings (minute stuff!) in the radiator and block some of the pipes.

sell4u:
Update - 1st thanx all for the help

Tried new thermostat, radiator cap, catch can / overflow bottle and actually runs hotter - now boils at idle????

Decided need someone who knows what they are doing a dropped her off at SR Performance today.

Already identified a few issues (inc bolt missing from water pump), so will let you know how its goes. Cheers ;8

cpu:
Getting hotter and hotter, not good.  This could get expensive.  Hope it's an easy fix an not head gaskets etc.

cpu:
Any updates sell4u?

sell4u:
To date, Steve @ SR Performance has been fantastic.

Overheating all sorted, sh#tty wiring on the thermo and relocated temp sender from thermostat housing to the radiator.

Turned up today and they were powering the old girl up for a dyno run to get a base line - 225hp @ the wheels with carb drowning the engine in fuel.

I ratted a new billet MSD dizzy, new Crane Coil & new Crane Ignition system I had set asside for my other project and dropped it to Steve today to throw on the old girl and they are going to custom make a set of new MSD ignition leads and fit it all up.

They should have that done by Tuesday, fit a new K & N air filter, fiddle with Holley carb (lean her out) and throw the 57 back on the dyno.

Then, how good is this - they are going to do a wheel alignment then take her over and get me a weigh ticket and blue slip.

Should be all good to go :D;8

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