I know this topic has been discussed a lot, but I really need some questions answered. I recently bought an LT1 block that the casting numbers said was out of a '94 Camaro. It has already been magnafluxed, overbored (+.030), etc. The rotating assembly I will be using for it consists of a Scat steel stroker crank (bringing displacement to 383), forged 5.7" rods and flat top JE forged pistons. The machinist includes hydraulic roller cam and timing chain in his $2700 price tag for this short block. I am going to keep this carbureted and hook it up to an old style 10-spline input shaft M-21. My questions are:
Which AFR heads do I choose? Do I have to choose the more expensive LT4 heads over the regular 195cc heads because of the headbolt and valvetrain alignment?
The Camaro this block came out of was originally equipped with distributorless omni-spark ignition. Is there a hole to the rear of the block where I can drop in my HEI distributor?
Also, is there a boss on the side of the block that has the provision of a mechanical (cam-driven) fuel pump?
I believe the Scat crank can be internally balanced (I plan on using a fluidampr). So can I keep my old-style 10.4 inch steel flywheel with a muncie 4-spd and a 3 month old centerforce clutch? Will the flywheel bolt holes on the crank line up? Will I have to use a stock LT1 oil pan? Will I have to use a transmission mounted starter or a block mounted starter?
Also, please let me know of anything else important I need to know before I swap a late block for an early model block in my 67 camaro. Thanks

OK-- The block did not have a machined hole for a mechanical fuel pump from the factory. Any Small block cylinder head should bolt on. The Aluminum LT1 & LT4 heads require a reverse cooling system. A great factory head to use is the vortec iron 855 off of a truck. There was a great article in Chevy high performance about a year ago on small block cylinder heads. There should be a hole for the distributer, but check to see if it is machined. <--- not totally sure on that. You will also be able to use a block mounted starter. The oil pan from any 1pc. rear main block should work ok and I am not sure about ther flywheel.

There is what looks like the bottom half of a distributor bolted under the intake of these engines. If you're running a carb type manifold you could use the rear dist. like a normal small block or use the factory set-up with the opti-spark at the front. The block would accept either.

You cannot run regular small-block heads on an LT1. The cooling passages in the block are completely different and you'll end up with a pan full of water. AFR makes a great set of heads for these engines or places like TPI Specialties can port the stock aluminum heads.

Jody