Like Tree8Likes

525 cam install. sleeper motor

Old 09-03-2017, 06:22 PM
Join Date: Feb 2012
Location: westville, NJ
My Boats: 1967 34 Hatteras summer house. 2000 Crownline 248ccr her boat. 79 Pantera 24 Sport.
Posts: 3,849

Originally Posted by hammerdown500 View Post
Stainless or emi exhaust with stainless risers and 330cc heads
Then it ain't gonna be much of a sleeper motor, unless it is in a sundancer...
dereknkathy is offline  
Reply With Quote
Old 09-17-2017, 09:15 PM
Platinum Member
Platinum Member
Trade Score: (7)
getrdunn's Avatar
Join Date: Feb 2009
Location: NW Michigan
My Boats: 12 meter
Posts: 4,823

Getting some good advice here. 5k plus or should do it depending on how far you go with it. Just remember there bigger isn't always better with your 330's you have in mind. 502 I'd be looking at good flowing 305-315 heads. There's some great running marine engines dyno proven 540' with 305's. Big gets lazy unless you have big inch.
getrdunn is offline  
Reply With Quote
Old 09-18-2017, 11:13 AM
Platinum Member
Platinum Member
Trade Score: (3)
Join Date: Jul 2004
Location: chicago
My Boats: 38 Fountain
Posts: 10,818

What 330 c.c heads are you using ? The stock GM rectangles, or a dart 330 cnc iron eagle ? Brodix?

Id take a 330cnc dart iron eagle over a 315cc edelbrock performer head any day of the week . The dart will run circles around in even in a 502ci.

Last edited by MILD THUNDER; 09-18-2017 at 04:38 PM.
MILD THUNDER is offline  
Reply With Quote
Old 09-19-2017, 05:25 PM
Join Date: May 2014
Posts: 85

I have ported oval merlin heads on both engines, but would love 2 sets of Darts with 1.7:1 rockers.
Barnacle Bill is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

All times are GMT -5. The time now is 04:07 PM.

Copyright 2011 OffShoreOnly. All rights reserved.