Low mileage crate 350HO smokes on start up ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ozkiwi · 08-23-2018, 10:07 AM

My 5 year old crate motor has started giving the occasional puff of smoke on start up sometimes.It's a bit random as it does not do it all the time.It just seems to go through stages when it does. It has 15000 miles on it and otherwise runs clean and uses next to no oil.I was thinking the valve stem seals might need replacing as I have heard the have always been a bit suspect in GM crate engines.Has anyone else here had this problem ?

08-23-2018, 10:07 AM	#1
ozkiwi Registered User Join Date: Nov 2012 Location: melbourne australia Posts: 196	Low mileage crate 350HO smokes on start up ? My 5 year old crate motor has started giving the occasional puff of smoke on start up sometimes.It's a bit random as it does not do it all the time.It just seems to go through stages when it does. It has 15000 miles on it and otherwise runs clean and uses next to no oil.I was thinking the valve stem seals might need replacing as I have heard the have always been a bit suspect in GM crate engines.Has anyone else here had this problem ?



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