72x38 dd sbc

Airboat propeller discussion.
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diamondback0320
Southern Airboat Member
Posts: 1323
Joined: Thu Aug 20, 2009 3:09 pm
Location: palm bay,fl

72x38 dd sbc

Post by diamondback0320 » Thu Oct 16, 2014 8:57 am

Anybody run this prop on 350 sbc,a friend is all done w build & has sbc on 13ft rivermaster 2 seater w light riggin,motor is early 70"s .030 over flat top pistons,dual plane intake w a 450cfm holley 4 barrel has an eye on a 72x38 regular blf prop just wondering how it will perform,thanks

One Eyed Gator
Southern Airboat Member
Posts: 1279
Joined: Wed May 30, 2007 11:33 am
Location: Ocala,Fl

Re: 72x38 dd sbc

Post by One Eyed Gator » Thu Oct 16, 2014 2:59 pm

It may turn it if is a stick prop. If it is a paddle that is a caddy prop, ran one on my 472 caddy for a long time one of the best all round preforming props.

swamper2
Southern Airboat Member
Posts: 428
Joined: Mon Apr 12, 2010 8:05 pm
Location: harsens island michigan

Re: 72x38 dd sbc

Post by swamper2 » Thu Oct 16, 2014 6:25 pm

back in 1977 I ran a 72x32 banks-Maxwell on a 400 sbc with a crower torque master cam for 15 yrs it ran 2800 rpm. It got me around but I was much younger then. would not go back there. LOL That 38 might be a bit much for your 350
16ft alumitech/406sbc/2.38w/3-80in.R's

Gas4blood
Southern Airboat Member
Posts: 998
Joined: Sun Sep 18, 2011 7:32 pm
Location: Jupiter FL

Re: 72x38 dd sbc

Post by Gas4blood » Thu Oct 16, 2014 7:17 pm

I run a 72/38 paddle right now. I sling it at 2800. Tried 4 other props this is by far my favorite

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