351 Windsor Swap
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=35504
Printed Date: May-19-2024 at 5:38pm
Topic: 351 Windsor Swap
Posted By: racingnc
Subject: 351 Windsor Swap
Date Posted: March-07-2015 at 9:21am
| I have an odd question or not so odd. Is it possible to put an aluminum block from a newer mustang cobra into a boat in order to lighten the weight of the boat? The idea here is to get rid of the cast iron block. I know I would have to change all the internal parts to make it a right hand rotation motor. I am wondering if it would hurt the torque output and horse power? |
Replies:
Posted By: 8122pbrainard
Date Posted: March-07-2015 at 10:13am
Are you prepared to add fresh water cooling? There are some drawbacks to aluminum. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
racingnc wrote:Posted By: halfnelly
Date Posted: March-07-2015 at 10:29am
| A newer Mustang Cobra will have an aluminum 4.6 DOHC modular motor, which has never officially been marinized and probably wouldn't fit under any existing engine box because they are so wide. There weren't any aluminum block 351W in any production cars, they are only available through Ford Racing for bigtime $$$. A better option would be swapping to aluminum heads, but you'd probably want to look into a set with coated water jackets for marine use. |
Posted By: racingnc
Date Posted: March-07-2015 at 10:44am
| What would you suggest for aluminum heads for a 1986 Ski Martinque? |
Posted By: Orlando76
Date Posted: March-07-2015 at 10:47am
| What's a Ski Martinique? |
Posted By: TRBenj
Date Posted: March-07-2015 at 10:51am
|
Block material choice would have no effect on hp output, just weight and strength. Heads will change a little (aluminum dissipates heat better than cast iron so you can run a little higher compression ratio without detonation), but flow characteristics are really the primary determination of power output. I would recommend taking a step back and determining your goals for the boat and establish a budget... We might be able to point you in the right direction. Why the concern with weight loss? |
Posted By: ArtCozier
Date Posted: March-07-2015 at 10:51am
|
The difference in weight won't probably won't make a measureable difference in the performance of your boat. All that hassle for maybe 1 mph?? ------------- "Art" |
Posted By: ArtCozier
Date Posted: March-07-2015 at 10:54am
|
Oh, and another important point that I just thought of..... There probably are no reverse-rotation parts available for aluminum blocks! ------------- "Art" |