Pulled the motor on the Blazer

[BBrendal]

Well I after procrastianating for a year and with the nice weather I finally pulled the motor out of the Blazer. It runs fine but I had several leaks including the rear main and it just looked plain ugly in there. Ill reseal it and detail the underhood and plop it back in. Couple of suprises I learned... 1 broken motor mount and a cracked driverside exhaust manifold. Is this common for the manifolds to crack? How easy or hard is it to get a replacement or used one? Ill post pic of progress as I go. Any other things I should do while its out?

[Dmcinfo]

I'd be interested in seeing how you go about detailing your engine compartment. Hope you take some pics along the way. I'll be starting that process soon and can always learn something new.
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[oldschool18]

those old ramhorn manifolds arnt hard to find they are on ebay and you can check here on the truck and blazer for sale forum. or check in your local area you might be able to pick up set close to home, my father is a mechanic and owns his own business and i bet he has 3 or 4 sets laying around.

[mustardjimmy71]

Replace them with the 2.5" ones. Way better flow. You can get them for under 100$ brand new. Theres a few threads on them

[BBrendal]

Originally Posted by mustardjimmy71

Replace them with the 2.5" ones. Way better flow. You can get them for under 100$ brand new. Theres a few threads on them

I would replace them but Im not replacing the exhaust. So I need to find a replacement one. Im not sure if it is factory or off a vette. The cast # is 3932461 with a "RH 6" under the part # but Im showing these to be for a vette. The pass side (uncracked) # is 3932465. Both dump straight down and not to the rear of the motor. Anyone have any better knowledge of these?

[Tom Vogel]

Brian... this exhaust doesnt have one of those exhaust thermostats on that side does it? If it does, check to see that it still rotates by hand and is not restrited in movement. This can cause the exhaust manifold on that side to overheat and crack if it wont open completely after it warms up.

[BBrendal]

Originally Posted by Tom Vogel

Brian... this exhaust doesnt have one of those exhaust thermostats on that side does it? If it does, check to see that it still rotates by hand and is not restrited in movement. This can cause the exhaust manifold on that side to overheat and crack if it wont open completely after it warms up.

Hey Tom. No heat risers on this set up. It has a replacement Goodwrench motor in it so I think someone may have done some swaping of manifolds. These were in a C3 vette. Is it possible these were used in our trucks too?

[Firebirdjones]

If they are truely vette manifolds, they would already be 2 1/2" outlets. These are harder to find OEM but are reproduced.

The trucks (and all other passenger car ramhorns) were 2 1/4" outlets. Very common to find.

[BBrendal]

Ok we have made progress! The motor was put back in the blazer yesterday and should be running this week. I did take pictures but they accidentially got deleted so Im missing alot of before pics. Here are some pic so far.

[dirty trucker]

Looks nice.. Good job!

[rsavage]

Looking great. Brian, I was at Carlisle Friday and Saturday and there was a Blue CST Blazer like yours there with supposedly 29,000 original miles. It was nice, not perfect, but very nice. The owner put it through the auction but it didn't sell - he was asking $37,500!

[jaros44sr]

Now your engine bay looks as good as the rest of your truck, well done! Thats cool having the original iron intake for the quadrajet

[BBrendal]

Thanks guys! Wow Rick 37,500 for a stock Blazer with supposedly 29000 on it. Wow thats the highest price stock Blazer Ive heard of. My guess is He probably really didnt want to sell it but if he got some obscene money he would let it go. Did you take any pics?

[Firebirdjones]

Looking good. Cleaning things up sure makes them a pleasure to work on from here on out. No more greasy hands

[BBrendal]

Well its done, running and has no leaks. I am very happy how it turned out and am glad its done.





And heres the before...

[JOHNORO]

Looks great .. nice job

[y5mgisi]

Nice! I want to do the exact same thing with my truck(s)!

[craigger007]

Man that looks soo nice. Kinda cool how a clean bay can look as good as one that is all chromed out...well at least imho.

[rsavage]

Brian,
It looks like factory new. Great job!

[boonedogs72]

looks great!

[67swb72klb]

thats a nice blazer upgrade turned out good

[Dmcinfo]

Did you repaint the master cylinder? If so what color is that and what did you use? Thanks.
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[71swb4x4]

Great job!!

[BBrendal]

Originally Posted by Dmcinfo

Did you repaint the master cylinder? If so what color is that and what did you use? Thanks.
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Yes I did. Its Eastwood cast blast.

[Firebirdjones]

Originally Posted by craigger007

Man that looks soo nice. Kinda cool how a clean bay can look as good as one that is all chromed out...well at least imho.

I think the stock clean appearance looks better than the "all chromed out" stuff. I especially like it when performance tweaks and tricks are hidden and it all appears completely stock

Looks good Brendal, it's ready to pop the hood at the local cruise night.

I see we have another 69 Z owner too,,,,I have an X33 RS.