The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Passenger exhaust manifold question on my 86 350 with newer gen heads

jetmech85 · 03-30-2015, 04:03 PM

Do you have center bolt valve covers? If so then, yes you have '87 or newer heads. Just from the little bit of valve cover I see in your pic it looks like you don't. I have a pair of TBI haeds and they have the bolt hole you need even though the hole was not used it was still there from the factory. Earlier heads did not have a hole there. Headers will bolt to your heads with no problem. I have some '70s era heads I can get a number from if you still need it but you will have to look under your valve covers to check yours. There will be a date code there also.

03-30-2015, 04:03 PM	#7
jetmech85 Registered User Join Date: Sep 2014 Location: Texas Posts: 215	Re: Passenger exhaust manifold question on my 86 350 with newer gen heads Do you have center bolt valve covers? If so then, yes you have '87 or newer heads. Just from the little bit of valve cover I see in your pic it looks like you don't. I have a pair of TBI haeds and they have the bolt hole you need even though the hole was not used it was still there from the factory. Earlier heads did not have a hole there. Headers will bolt to your heads with no problem. I have some '70s era heads I can get a number from if you still need it but you will have to look under your valve covers to check yours. There will be a date code there also.