1969 L-72 For sale
 

I am selling the 69 L-72 I purchased for the Yenko clone I am building due to an illness. This motor has been completely & professionally assembled from intake manifold to oil pan, using original 427 4 bolt #512 block, dated K5 9. 427 balanced rotating assembly, 69 #840 closed chamber 427 heads,dated C12 9. #163 aluminum original 427 intake manifold, fully balanced to flexplate and flywheel. Hi volume oil pump and the rest of the parts are GM or better. Numbers by the starter mounting flange are T129. This was likely a late model replacement 427 as there is no serial # by the oil filter and the original has been milled off when the block was decked. I am asking $10,000.00 you may reach me by phone after 7/31 at 801-791-2653 in Utah. Thanks for looking - Scott https://www.yenko.net/ubbthreads/imag...lins/frown.gif

Re: 1969 L-72 For sale
 

Sounds like a 454 block to me.

Re: 1969 L-72 For sale
 

That was my first assumption as well. Late model 512 blocks were used as early LS-6 blocks. The crank shows 427 stroke. Everything on this motor is built to L-72 specs. 11:1 compression NOS pistons, crank, dimpled rods. I did not check to see if the jugs were notched for the 454 throw when the motor was assembled or I could give you a difinitive answer on this. Engine was originally built for a COPO in SLC, Utah, then the owner found a genuine COPO motor and put this up for sale. I bought it, did my homework and believe it to be a late model replacement 427 or CE motor.

Re: 1969 L-72 For sale
 

That makes since. What was the number on the crank?


Thanks,


Jason

Re: 1969 L-72 For sale
 

I am not sure of that. I should have looked when the engine was going together but I did'nt. I was there when the short block was assembled, I wanted to make sure the guy didn't cut any corners, which he did't. I have a lot of respect for the builder at this point and believe him to be honest. He informed me that this was the 427 crank and I don't have any reason to doubt him. In all of our other dealings, he has been very staight up.
Scott

Re: 1969 L-72 For sale
 

SSNOVA guy: CE blocks were used for L88 replacement shortblocks at that time! I have one with all the original std GM parts still in it! 512's were both at the time https://www.yenko.net/ubbthreads/imag...lins/beers.gif