Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   Cam and valvetrain longevity....??? low duration high lift... (https://www.offshoreonly.com/forums/general-q/341258-cam-valvetrain-longevity-low-duration-high-lift.html)

MILD THUNDER 09-23-2016 06:48 AM


Originally Posted by Full Force (Post 4484293)
Same? I was told they are, then the 3a and 4a is 2" shorter over a 3..?

4A!!!?? No such thing.

I wanna say a 3 is 1 or 1.5 shorter than a trs. A #4, is about 5.5", shorter than a 3/3a.

Unlimited jd 09-23-2016 06:55 AM

Ssm 3 is 24.311
Trs is 24 7/8 iirc

Unlimited jd 09-23-2016 06:56 AM

94 top gun with 700's and trs did 81

Full Force 09-23-2016 07:48 AM

Top gun is faster hull then mistress, my chits a SLUG!

Full Force 09-23-2016 08:00 AM

I'm not up on SSM drives, just what I thought oops

Originally Posted by MILD THUNDER (Post 4484297)
4A!!!?? No such thing.

I wanna say a 3 is 1 or 1.5 shorter than a trs. A #4, is about 5.5", shorter than a 3/3a.


cigrocket 09-23-2016 08:52 AM


Originally Posted by MILD THUNDER (Post 4484297)
4A!!!?? No such thing.

I wanna say a 3 is 1 or 1.5 shorter than a trs. A #4, is about 5.5", shorter than a 3/3a.

Nope No 4A. However some had small shaft 19 splines and they were upgraded to 26 Spline. Parts were always tough for the 4's because they just didn't make many and then stopped. Short span of years.

MILD THUNDER 09-23-2016 09:03 AM


Originally Posted by cigrocket (Post 4484342)
Nope No 4A. However some had small shaft 19 splines and they were upgraded to 26 Spline. Parts were always tough for the 4's because they just didn't make many and then stopped. Short span of years.

Yep. I have small shaft 4's. They use the same lower gearsets as the big shaft drives if i recall. The upper gears are different due to the polygon vertical shaft . Some 4's came right from merc with big propshafts

endeavor1 09-23-2016 10:34 AM


Originally Posted by Unlimited jd (Post 4484300)
94 top gun with 700's and trs did 81

40 Hawk did 82 on its best day with those motors IIRC:daz::coolcowboy:


Maybe Tim should buy the Hawk

TxHawk 09-23-2016 10:53 AM


Originally Posted by endeavor1 (Post 4484373)
40 Hawk did 82 on its best day with those motors IIRC:daz::coolcowboy:


Maybe Tim should buy the Hawk

Ran 84 once for me and I believe Kevin saw it there too with prop work. I cheated with 55* and good gas. Imco's don't make it a fair comparison.

But the 40 with Konrads runs 75 with 630HP 540's. For Sale too!

MILD THUNDER 09-23-2016 10:58 AM

The 40 hawk had a 22 deg deadrise if i recall.


All times are GMT -5. The time now is 04:39 PM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.