Hi , I just bought a 409 short motor and heads.
The block numbers end in 656 and thinking this block is a truck block as calculated compression ratio comes out around 7.9 :1.
Is there anyway to measure across and down bore at valve relief to confirm it is in fact a truck block?
Thanks, Gary.
The block numbers end in 656 and thinking this block is a truck block as calculated compression ratio comes out around 7.9 :1.
Is there anyway to measure across and down bore at valve relief to confirm it is in fact a truck block?
Thanks, Gary.