Pics of my headers installed and info about fitment issues
 

Here are some pics of my headers now that they are installed and fitted. This is on my 69 with a 454. These headers are Dynomax Cermacoated headers designed for the 67-87 BBC 2WD. The headers for 73-87 BBC 4WD would not work.

The engine is sitting in the small block engine crossmember using the original small block style engine mounts. I did move the crossmember forward about 3/8" or so to give me better oil pan clearance and header clearance for the first header tube on the passenger side.

To make these headers fit I did not have to make any modifications to the driver's side other than I did have to go with a shorter oil filter as this engine has an oil cooler setup which put the larger oil filter in contact with the headers.

On the passenger side I had to remove a little bit of frame to give clearance for the first and second header tubes. I would guess I removed about 1/4". I also ended up grinding off a little bit of the engine crossmember tower as it was in contact with the bottom of the first header tube. In the end I had to use some spacers that I put between the engine and the engine mount bolts to raise the engine a bit on the passenger side and I also raised the drivers side by using spacers about half as big.

The above modifications have me comfortable with the clearance around the oil pan and passenger side headers.

I will go ahead and post a number of pics showing how the headers sit in the frame and how they are positioned in regards to the Rockwell transfer case as I hope this will be of interest to others who are doing a big block swap in a 67-72 four wheel drive.

First pic is overview of drivers side.

This pic is of the driver side collector.

Here's a pic again of the drivers side from behind the transfer case.

This pics shows how low the driver side collector sits.

Here is a pic of the passenger side collector. Did have to grind down the bolt on the lower shackle.

Another pic of the passenger side collector.

Here's how low the passenger side collector sits.

Here's a pic from in front of the engine showign the header pipes.

Pic of the passenger side headers.

me likes!!!!!!!!!

Leave it to a good ol Kansas boy to build a bad a$$ machine


keep us up on it


david

Lookin Good Yukon. When you going to make some Smoke with that Bad Boy.

A buddy is doing rust repairs on my cab and I should have it back maybe this weekend. Then I get to learn body work and paint - gonna do that myself for some ungodly reason - what am I thinking? So to answer your question, I have no idea - probably a month later than I think :-)

Lookin' good Mark! It needs to be done by June 22nd, lol!! Do you still want to use my HVLP gun?

Man, that looks sweeeeeet! Makes me wanna go w/a big block!

:burnout:

I know! I'm sweating bullets at this point. Can I have it done - or more correct - can WE have it done. Cause I know I'm gonna enlist you and Jason to help me put it back together!

And yes, I do want to borrow your gun. You headed this way anytime soon?

No plans, but we can make some, lol!! If you are going to start the body work, sanding, etc., we might work something out to meet at Chuck's house in Belle Plaine, and he would be glad to give/show you some helpful info. You've gone this far, we might as well do it right, hehee! We'll just make that ol' truck shine like the grin you're gonna be wearin' when you get behind the wheel!

You better start saving for some gas money cause I bet your wife will never get you out of that hing once you get it all finished.

Ya know, daily driver does have a nice ring to it, don't it!

Hey Yukon, just wanted to say I like the big block. I just built one exactly like it! I love those GM valve covers. They look great on a black motor with the aluminum intake. Unfortunately, it'll be a while before I get to bolt it in. It sure looks good on the stand though.

LOOKING GOOD!!

holy krykees that looks sweet yukon jack

You aren't done yet? :rolleyes: Looking good Mark :D

That looks great! I am still curious to see how you get the exhaust bent around the transfer case. In the pics it looks like the headers are pointing right at the crossmember with maybe 8 inches to work with. I will be following this with interest as I am considering doing the same thing.

68 Stepside - how did I know you were gonna say that! I definitely am slow aren't I.

Breeh, the exhaust looks like it should be a piece of cake - with the first set of headers, it never would have worked, but I'm pretty confident that with these it will be fine. I'll definitely post more pics, seeings how I'm a bit of a pic whore :-)

Hey Yukon, I was looking at your pics again and was wondering if you think that a stock clutch lingage would work with those headers?