Cam and valvetrain longevity....??? low duration high lift...

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09-23-2016, 06:48 AM

#451

MILD THUNDER

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Quote:

Originally Posted by Full Force

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.

09-23-2016, 06:55 AM

#452

Unlimited jd

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Ssm 3 is 24.311
Trs is 24 7/8 iirc

09-23-2016, 06:56 AM

#453

Unlimited jd

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94 top gun with 700's and trs did 81

09-23-2016, 07:48 AM

#454

Full Force

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

09-23-2016, 08:00 AM

#455

Full Force

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

Quote:

Originally Posted by MILD THUNDER

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.

09-23-2016, 08:52 AM

#456

cigrocket

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Quote:

Originally Posted by MILD THUNDER

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.

09-23-2016, 09:03 AM

#457

MILD THUNDER

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Quote:

Originally Posted by cigrocket

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

09-23-2016, 10:34 AM

#458

endeavor1

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Quote:

Originally Posted by Unlimited jd

94 top gun with 700's and trs did 81

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

Maybe Tim should buy the Hawk

09-23-2016, 10:53 AM

#459

TxHawk

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Quote:

Originally Posted by endeavor1

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

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!