81 Olds Cutlass 3.8/350c to 72 Buick 350 & complete resto

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Re: 81 Olds Cutlass 3.8/350c to 72 Buick 350 & complete rest

dogshit said:
Looks great. I like how the red block, distributor, and wires, tie in together. There is also enough contrast with the clean cast and the black brackets & pulleys add in a nice touch of chrome with the valve covers & intake and whole package looks great. Lots of guys paint everything one color and it rarely looks as good as it could. The distributor being up front is nice. Crane makes a good adjustable vacuum advance put with an advance curve kit and you will be ready to tune it for power.

Did you port out the opening of the exhaust manifold? If you can use 2.5" 2.75" or even 3" out of the exhaust manifold it will not lose as much HP & especially torque to the exhaust system. Even if you use smaller pipe downstream such as the tailpipes. The stock drag racers do this. A simple H pipe about 2' in front of the muffs also saves a few and eliminates any possible drone. You might also consider upgrading to some good salvage yard electric fans to eliminate power loss from the clutch fan. Mark 8 fans are highly regarded as are any mini van fans that have rear air as are some others. Most who do that also upgrade to a newer style alternator as electric fans draw some juice. My GN came with electric fans and I upgraded to dual electric pullers to the cool the 509 down in the Cutlass and it worked great. Did you run a 160 or 180 degree thermostat?


Thanks for all the compliments. No i did not port the exhaust. I would like to study and learn how to do.

Maybe I will look at when I return from my business trip
 
Re: 81 Olds Cutlass 3.8/350c to 72 Buick 350 & complete rest

Blake442 said:
Looks like you got all the V6 accessories bolted onto the motor!

What water pump did you use? V6 or V8? Just want to make sure my pulleys line up...


Yes ALL accessories bolted right up to the 350 block, I am completely surprised. I ended ordering a waterpump for the 350. It was so cheap I just replaced it. THe pulleys are from the 350 as well.

The only hiccup I come across so far is the length of the alternator belt. It seems I need a 49" belt, the original 45" is too small.
 
Re: 81 Olds Cutlass 3.8/350c to 72 Buick 350 & complete rest

G-Body_Vet said:
Ahh the often overlooked cheap cooling upgrade....the 7 blade fan. I'm assuming that was from the 350, not the 231?


Yes it was. When I picked up the engine from the seller I saw it laying in the corner. I asked, what are you going to do with it. He said take it!!! Definately took him up on that offer!
 
Re: 81 Olds Cutlass 3.8/350c to 72 Buick 350 & complete rest

Ya gotta love GM interchangeability!
 
Re: 81 Olds Cutlass 3.8/350c to 72 Buick 350 & complete rest

You just get a small air powered die grinder and or variable speed drill a couple carbide burrs and bell mouth the exhaust outlet opening to as big or thin as you want to get. Naturally take out any lips lumps or restritions that you can see or reach. Depending on what you can get comfortably you match it to the pipe available. 3" may or may not be doable depending on your manifolds and probably is not worth the effort for this car. 2.75" pipe is sometimes hard to find. But at very least you can easily open it to 2.5" or more so that its slightly larger than your 2.5" pipe.
 
Re: 81 Olds Cutlass 3.8/350c to 72 Buick 350 & complete rest

dogshit said:
Hey have you thought about getting new decals? Either the red Buick 4 barrel for the air breather or the black Buick 4 barrel for the valve cover.

Just like Blake has in the third pic only with a 4 instead of 2. http://gbodyforum.com/viewtopic.php?f=13&t=30492
http://taperformance.com/products.asp?cat=49


Yup already got them. Havent put them on yet. waiting to make sure the covers clear the AC box first
 
Re: 81 Olds Cutlass 3.8/350c to 72 Buick 350 & complete rest

Could not be more pleased with the install. The spectre covers left me some good clearance to the ac box. Engine went right in with no issues at ALL

Pictures of install
 

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Re: 81 Olds Cutlass 3.8/350c to 72 Buick 350 & complete rest

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