Headers for 79/trk with Olds motor

[1bad79]

I have a 79 silverado which was a diesel in the beginning and was converted to a gas engine which is now an oldsmobile 350  started doing performance upgrades but having a problems with getting headers that will fit since it is an oldsmobile engine in a truck body

Edited by: 1bad79 at: 7/31/06 10:23 pm

[123 pugsy]

You could always have some fabricating fun......






455 Olds in a 79 C 10

[Stewart G Griffin]

i would think that the "G" body headers would work.

Don't quote me on this;  We need other's advice.

[1bad79]

Nice looking engine and what was the cost of having the headers made and my truck is lowered does your headers hang very low    

[1bad79]

the G body would be for exactly which cars and also I saw a set of Sanderson Blockhuggers that probaly would work but I did not know if that would rob a lot of my power and I'm also thinking that the long tubes probaly would sound much better but the main thing is that I want to put a set of headers on my ride.

[1bad79]

I would like to know if you have the part number for your top radiator hose because the one that is one my truck kinks up and it is the same one since I bought the truck and I'm not satisfied with it or when you got buy one from the part store what do you ask for since the radiator is off a chevy truck and the water neck is for an oldsmobile engine.

[123 pugsy]

A regular Chevy hose is what I used.If the hose is kinking,sounds like its a little long.Maybe trim a 1/2" or so.

I made the headers myself, so the cost I am not sure. They are solid stainless steel and I had them ceramic coated when they were done.

There are header kits available that come with various bent pcs of tube,flanges ,etc.

BTW,these were on my last truck that I sold last year.

[Stewart G Griffin]

Well, first of all, i don't know anything about olds motors (a good thing?);  Does the 350 share parts, especially exhaust ports as the 307?  Like the chevy 350 shares most everything with the 305?   If so, i would think the g body (cutlass) headers should work.

Better yet, the A body---68-72 cutlass, chevelle, tempest, skylark etc. headers would really probably work.  And i know olds put a 350 in that vintage cutlass?

As far as brands, my money is on Eldebrock TEC headers or Walker.

[1bad79]

can you tell me who make header kits for the oldsmobile engines and where did you find that flange for your headers

[123 pugsy]

Just Google: olds header kit  

[lokmotion85]

been awile since i done an olds , won't go there, but i believe the 73- 77 olds cutlass is what you need , or better yet a set from a 77- 81 firebird w/ a 403olds i think there the same , would give you better ground clearance,  i hope that helps & that I'm not wrong , like I said been awile ,pontiac& chevy guy same motor mounts easy bolt in, roll low..drag hard

[oldsmobiledave]

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here is my posting on realoldspower.com regarding the installation of Headman Headers in my 1980 GMC 2wd with a 455 Olds. I have lots of other pics if you need more. Hope this helps.

The 455 is WIDER than the 350 Olds so you will need to start with the SBO headers instead of the BBO headers. I used 65-77 A body BBO headers (same for 71-76 Delta).

Passenger side is a drop in but drivers side needs 1 tube re-located & collector shortened & angled up to clear the shifter linkage (you should shorten the passenger side collector to match for even scavenging).

the addition of headers on an OLDS V8 is very improtant; heads have relatively SMALL exhaust ports & the headers are a huge improvement over the diesel SBO exhaust manifolds. Olds V8 makes gobs of TQ for towing & off-road & the engines are extremely durable if you keep the RPM down (under 5500 RPM).