Offshoreonly.com - Search Results

Search: Posts Made By: Rage

Showing results 1 to 5 of 5
Search took 0.01 seconds.

Forum: General Q & A

05-13-2008, 02:38 PM

Replies: 16

525hp marine 496 from GM

Views: 22,747

Posted By Rage

Nascar Springs: ...

Nascar Springs:
http://www.compperformancegroupstores.com/store/merchant.mvc?

Nascar springs are high rate high stroke springs sufficient to keep the valve train in contact at 10,000 rpm on a...

Forum: General Q & A

05-13-2008, 01:01 PM

Replies: 16

525hp marine 496 from GM

Views: 22,747

Posted By Rage

GM started out trying to keep the 496 as close to...

GM started out trying to keep the 496 as close to stock as possible so that they could not only keep production costs and therefore price down but also market it as their "Truck Engine" that could...

Forum: General Q & A

05-12-2008, 10:23 AM

Replies: 16

525hp marine 496 from GM

Views: 22,747

Posted By Rage

ADDENDUM: I neglected to mention that the...

ADDENDUM:

I neglected to mention that the stock Merc 496HO valve springs were replaced in my setup based on the HP3 Crane Cam timing card, but not the Nascar springs which are significantly higher...

Forum: General Q & A

05-12-2008, 09:56 AM

Replies: 16

525hp marine 496 from GM

Views: 22,747

Posted By Rage

The HP3 differences from 496HO includes: custom...

The HP3 differences from 496HO includes: custom ported heads (iron), GM ECU/sensors and programing with increased rev limit to 5400 rpm, Crane roller rockers, Crane roller lifters, Trend high...

Forum: General Q & A

05-12-2008, 08:17 AM

Replies: 16

525hp marine 496 from GM

Views: 22,747

Posted By Rage

I know quite a lot about the HP3 engine. Dave...

I know quite a lot about the HP3 engine. Dave Stiff at Innovation Marine (941-355-7852) does as well though most of the people there that worked on the HP3 project are gone. Last I heard Innovation...

Showing results 1 to 5 of 5