Offshoreonly.com - 502/502 Gen VI crate Shortblock

Offshoreonly.com (https://www.offshoreonly.com/forums/)

- General Q & A (https://www.offshoreonly.com/forums/general-q-20/)

- - 502/502 Gen VI crate Shortblock (https://www.offshoreonly.com/forums/general-q/57439-502-502-gen-vi-crate-shortblock.html)

Monty

08-20-2003 01:21 PM

502/502 Gen VI crate Shortblock

Anyone using these as a basis for your engines? Steel 4.00" crank, 4340 7/16" rods, forged pistons. The only thing I'm concerned about is whether the stock 502/502 hyd roller cam is a good marine cam (.527"/.544", 224 / 234 degrees duration @ 0.050"), i.e. no water reversion with Stainless Marine exhaust. It's only got 9* of overlap at .050".

Monty

08-20-2003 01:39 PM

Are you referring to the Powermax Hyd Roller 168741? 236/244 duration. It's recommended for 10:1+ compression?

CONDOR24

08-20-2003 04:28 PM

I BOUGHT THE MARINE 502/502 CRATE GEN 6. THE CAM IS A CRANE ROLLER #169611, 576/598, 284/292, SPRINGS AND1.7 ROLLER ROCKERS WERE ALSO INCLUDED. I RUN LIGHTNING HEADERS NO REVERSION PROBLEMS.

Monty

08-20-2003 05:46 PM

I wasn't aware there was a "marine" version of the 502/502 crate engine. Do you happen to have the part number? Is that a long or short block? Thank you.

CONDOR24

08-20-2003 06:55 PM

i bought a long block"new" iron heads 502/502 from affordablemarine.com. the owners name is jim and they ship anywhere in usa,best $ anywhere. engine comes with marine aluminum intake to oil pan. check out his website or call affordable marine in portland connecticut,he is more negotiable on the phone! good luck.

All times are GMT -5. The time now is 08:01 PM.