i am ordering the k1 piston and rods for a 79 motor i have.question is i have a cast crank would i be off to look for a steal crank or keep the cast one....i have shaved the head and putting a comp cam in it,got a hughes 3000 stall in it and 3.23 gears in it and a super six set up...i play with the car at my local dragstrip in the king of street class....... thanks

Forged steel crank will not fit cast crank crank block.

Richard

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ok thank you...is it ok to use cast crank motor for what i am going to do,or do i need to get me a early 225 motor?????thanks.

Cast crank engines are used often in drag racing. While not as strong, the cast crank is lighter. Make sure you order rods for the cast crank.
The cast crank rods are narrower than the the forged crank rods. (This can also benefit a racing engine, as there is less bearing surface, so less friction.) Prepare the rod bearings appropriately for use.
If you haven't already, hit the Home button and read the Articles. You will also find a lot of great information by perusing the FAQ in the Engine section. Look up Doc's builds, and look over the Engine Build Matrix.

Enjoy!

CJ

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Part of Tyrde-Browne Racing