Offshoreonly.com - Chevy 572 phase 1, 2, 3

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- Do It Yourself, Boating on a Budget (https://www.offshoreonly.com/forums/do-yourself-boating-budget-249/)

- - Chevy 572 phase 1, 2, 3 (https://www.offshoreonly.com/forums/do-yourself-boating-budget/241541-chevy-572-phase-1-2-3-a.html)

Mange

10-28-2010 04:38 PM

Quote:

Originally Posted by HaxbySpeed (Post 3240874)

That's a cool setup Mange! Definitely keep us updated! What are you using to drive the coil on plug system? Thanks. :coolcowboy:

Thanks HaxbySpeed,

The Autronic SM4 tells when its time. The multi spark system is built-in the coils.

Mange

HaxbySpeed

10-28-2010 05:11 PM

Quote:

Originally Posted by Back4More (Post 3241143)

Don't understand why it starts out loosing .060 on the bore.
Says the Max safe wall is a 4.600 bore

It's actually only .040 under max. That's the basic 572 combo. 4.560 is a shelf piston and leaves you room to freshen it up a couple more times..

HaxbySpeed

10-28-2010 05:16 PM

Quote:

Originally Posted by Mange (Post 3241182)

Thanks HaxbySpeed,

The Autronic SM4 tells when it time. The multi spark system is buil-in the coils.

Mange

Nice! I'm doing a similair setup but have to run an additional box to fire the coils. Can't wait to see the number with the big blower and Bob's cam. You gotta be getting close to running out of cylinder head though I would think.

jeffswav

10-28-2010 05:18 PM

Quote:

Originally Posted by tomas_wallin (Post 3241040)

The new cam from MarineKinetics arrived today! I will stop by Johnny tomorrow morning.

Good choice, that thing is going to run.

Mange

10-28-2010 05:29 PM

Quote:

Originally Posted by HaxbySpeed (Post 3241218)

Sounds nice. Is it a blower engine your are up to?

I know the heads will be the point here but we will go with it for now and see :)

tomas_wallin

10-29-2010 01:55 PM

Quote:

Originally Posted by HaxbySpeed (Post 3241218)

Bob's cam will put the heads to their limit but with his expertice the motor will most likely make the power Mange is looking for.

HaxbySpeed

10-30-2010 03:24 PM

Absolutely no doubt about that! I'm sure it's going to rock, and will be a lot of fun in that boat. I think it's really cool that you guys took that combo and optimized it to this point. I can't wait to see what it makes. :boat:

Mange

11-11-2010 10:27 AM

2 Attachment(s)

Some updates.
After last visit at the engine shop the project going on :)

Now the bypass valve are done and fits the throttle housing.

Centsless

11-11-2010 09:38 PM

WOW!!that s a mill and a 1/2

Centsless

11-11-2010 09:49 PM

to be honest though...... the looks of your step 2 motor with those headers just a bout wets the shorts........ way cool look......

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