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Hi,
I am changing intake gasket and also need to change bolts for lower intake, because they are rusted.
But it seems very problematic to find here in Europe bolts with thread in inch system. So I have checked what I can order online from summit or similar. I found one confusing thing- I measured the thread size of bolt removed from lower intake and it is "18G 5/16". But according to http://store.summitracing.com/partde...1&autoview=sku, they say that intake manifold bolt thread size for GM is "16G 3/8" and "18G 5/16" is for FORD.
Can anyone advice what is correct bolt size and where could I find online bolt kit for lower intake and exaust manifold studs?
I am changing intake gasket and also need to change bolts for lower intake, because they are rusted.
But it seems very problematic to find here in Europe bolts with thread in inch system. So I have checked what I can order online from summit or similar. I found one confusing thing- I measured the thread size of bolt removed from lower intake and it is "18G 5/16". But according to http://store.summitracing.com/partde...1&autoview=sku, they say that intake manifold bolt thread size for GM is "16G 3/8" and "18G 5/16" is for FORD.
Can anyone advice what is correct bolt size and where could I find online bolt kit for lower intake and exaust manifold studs?
