cig1988

Get your mind outta the gutter.
At the crossroads here and need some input. I have a choice of just going with the blocks I have. Salt water exposed for apprx 8 years. Religiously flushed and appear in decent shape. Going with Dart 345 cc heads marinized and hardened exh seats. All and all for another $10K I can go with a new Dart block all new internals & pondering the thought of stroking it. Leaniing towards dependability cause I'm just getting too damn old to be doing this. Money is no object and I want naturally aspirated engines. Any thoughts on what stroke etc etc ?
Stan

dean51267

make your HP with cobuc inches, get a 572 or simmilar and build it mild, easier to make reliable power....

cig1988

What would be a "reliable" horspower range & the largest cube to go with ? Definetly going with a roller cam with a Dart single plaine intake manifold. With all of this it will definetly be dynoed.

cig1988

Ttt

AIR TIME

I just was a 598 770tq at4800 750hp at 5600or5800 hpmight have been more I was looking at the tq ##. cam was same as in my 510 I make 627tq at 4800 and 650 at 5800.

cig1988

What cam spec's, carburation, and exhaust are you running ? They look like some nice #'s. Are you running GM blocks ?

gg10

4.375 stroke, 6.735" rods, 1.27"cd, dart 345 heads, used an eldebrock victor insted of dart intake, just did a comp and the eldelbrock makes more tq and cheaper, spend savings at Wilson manifolds blueprinting intake, BLP carb, and crane hyd roller will make 750hp at 5500, good luck ,gg

AIR TIME

Hi was ouy all day. the specs on the 598were at my engine builders shop, mine is the 510 which engine do you want specs on? art

AIR TIME

well my engine the 510 is a 1993 merc 502 390hp . in 2001 after top end only mods which made 592hp and 580tq I put in new ISKY CAM HDY ROLLER, MERLIN 310 HEADS MARINE, NEW PISTONS 9.5 TO 1 CRANK RODS PISTONS BALANCED MATCHED DART INTAKE, 850 BG CARB GOING TO NICKERSON 1050 S/M DRY HEADERS, A LITTLE loud MSD EVERYTHING . I HAVE BEEN THE OCEAN ONLY FLUSH, HEADERS ARE 1994 CARB 1994 MSD 1995 JUST DIED GETTING NEW BOX THIS WEEK THIS THING MAKES THE 650HP

AIR TIME

Oops The 592 Hp Numbers Were Done In 95 And The650hp Was 2001 And It Was Built Too 510 Ci 2001, If You Want I Can See What Specs Are On The Board About The 598. Art