Valve sizes ... you better be sitting down ... 1.88 1.50 ......
BUTTT excellent for the application
THOSE are the only specs that I KNOW .... I did measure the deck height of the piston ... the width and depth of the dish in the piston etc. I did write them down but I don’t have them in hand.
Yes there’s the hemi rod option ... and the 4.15 crank with the 383 forged flat tops but I don’t have the spec sheet.