These snippets will only be of use if you have the same lump as me, a Chevy 350.
Gearbox oil - 80F Dexron 2
Engine oil - Castrol GTX
Oil pressure gauge, fitted using 3/16 straight brake fitting f/f [female/female]
Water temp sensor is located nr manifold
Water system is 13 psi.
------------------------------------------- Post Build Issues ---------------------------------------------------------------------------------------------------------
Each year for 2 years the exhaust manifold blew.
I think it was that this was the weakest link in the system.
I found some copper race gaskets from www.summitracing.com and these fixed the issue [for 500 miles so far]
10 miles later while accelerating up a hill there was a horrible noise oh dam [or something like that] I thought another gasket. I limped home and looking under the bonnet there was a piece of pipe?? The manifold [header] had broken.
Looking at it it has a heat fracture.
You can see in the pic above the good & broken header, below you can see the other fractures at the weld.
Investigating it looks like the whole system cannot cope with the gas flow from the Chevy [with my right foot to the floor]
So it's a new exhaust!!
I'm looking at www.shinybitz.co.uk who can make up a custom system with a 4 branch, improved gas flow and horses to the rear wheels!
Well I did it this year and replaced the sidepipes, I'm really pleased with them as you can see!
