Thread: 327 Performance options???

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Welllllll, !!!, I suppose lots of GM parts are outsorced now and as long as it fits the crankshaft snugly the timing mark is in the right place. Check this by winding the motor over by hand to 1 TDC by using a piston stop in the sparkplug hole, you should see if the 0 on the timing marker lines up with the line on the harmonic balancer.

2 more points make sure that you have an internally balanced balancer, that means no counterweight on the balancer.

Is it an 8 inch or a 63/4 diameter balancer ?

Just a question totaly different from all this what kind of transmission are you running and what was the car type again ?

IT is an 8" balancer. It will be in a 69 camaro, and I plan on putting in a muncie 4 speed

It only has 8hp in that pic LOL, including the horse in the background

Originally Posted by sanpedro

It only has 8hp in that pic LOL, including the horse in the background

And I see the corgi wants to play basketball as well !!!!

Actually thats not a bad idea using a llawnmowing tractor as a tow vehicle aroud the garage.

Good one ! Those muncie 4 speeds hooked up to the right clutch and flywheel combination will make those 327's sing.

I recommend a 158 tooth steel flywheel with a diaphagm clutch with the raised fingers 10 1/2 inch diameter. The smaller diameter flywheel will lower the rotational mass of the flywheel which will enable that 327 to rev up quicker. And it wont hurt to get that flywheel lightened some more on the outside edges.

Is it the wide or close ratio muncie ?

Have to check on that but I recall that they had the big rectangular port aluminium open chamber heads. Just cannot remember if if the exhaust ports were the O or the D types though.

It's up to personal choice, a small chamber with a flat top piston and minimal quench works. Flat top pistons are cheaper and there is no piston dome interfering with the flame front. World make open chamber heads along with a plethora of other manufacturers, I am aware of that, but different horses for diferent corses. I only generally use open chamber heads for low compresion engines, like when I put a blower on top of a motor.