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Recipe for "Stock Appearing" build for '70 383?

rossgn

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Looking for a stock appearing performance recipe. I know it's not stock appearing, but will be running 1-7/8" headers through stock mufflers and resonators. Would like to retain A/C and ower brakes.

20231225_184422.jpg
 

rmchrgr

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Anything 400 block based - 470", 500", 512". Is the stock appearing idea just kinda sorta meaning aluminum heads and intake under a stock air cleaner or does it have to be factory iron heads and intake?

What is the ultimate goal for the engine?
 

rossgn

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Anything 400 block based - 470", 500", 512". Is the stock appearing idea just kinda sorta meaning aluminum heads and intake under a stock air cleaner or does it have to be factory iron heads and intake?

What is the ultimate goal for the engine?
Street car I already have a Edelbrock Performer. Considering aftermarket alum heads, if anything, to get some weight off the nose. I would have both powder coated or painted to match block. Want to end up with a setup that would work with minimum 93 pump gas.
 
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rmchrgr

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If you're willing to use aluminum heads a good bet would be Trick Flow 240s. There isn't much else in that price range that will be as effective. Stealth heads are OK and cheaper but the TFs flow more air. With appropriate pistons, aluminum heads should allow about 10.5:1 -11:1 compression with pump 93.

The Performer intake is basically a copy of the stock iron intake in aluminum and would likely be a cork on a stroked big block. Though it is taller, the Performer RPM is a better all-around intake if you're able to swing it.

A hydraulic roller cam would be a good choice on the street. Strokers can generally handle more cam duration than a stock stroke combo so you want to make sure whatever profile you choose will provide enough vacuum for power brakes.

A few years ago I built a stroked 383 (438") for a friend of mine. It was a very basic combo as he did not have a big budget. We used a 383 block bored .060" over with very basic machine work. 440 Source rotating assembly and OOTB Stealth heads with Fel Pro .039" gaskets for 9.3:1 C.R. Edelbrock Performer RPM intake. Hughes hydraulic cam HUG SEH2832BL-10 and lifters, Comp Pro Magnum rockers, stock pushrods, Comp double roller timing chain. High pressure oil pump and 440 Source 6 qt. oil pan. Generic headers were used on the dyno but in the car ('66 Fury) he is using TTi 1 7/8" headers and a full TTi 2 1/2" exhaust system. MP distributor and electronic ignition, Taylor wires, Champion plugs. Holley 750 3310 carb.

450hp @ 6,000 rpm and 475 lb. ft of torque.
 
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