302 Block 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=33962
Printed Date: October-08-2024 at 10:56am
Topic: 302 Block Swap
Posted By: roncoo
Subject: 302 Block Swap
Date Posted: June-25-2014 at 2:55pm
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I just bought a boat with a cracked 302 Crusader Model 220hp. It is counterclockwise rotation (LH) what is involved in swapping the block out using an automotive 302 block? Help ------------- roncoo |
Replies:
Posted By: Gary S
Date Posted: June-25-2014 at 6:58pm
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You will need to use brass freeze plugs and reverse rotation seals. Depending on block some RR seals are getting hard to get,some blocks used 2pc main seal newer ones use 1 pc the ones I believe are the harder ones to get. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: SNobsessed
Date Posted: June-26-2014 at 12:52am
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Gary, he said his boat had a LH engine, so the std RMS should work ok. ------------- “Beer is proof that God loves us and wants us to be happy.” Ben Franklin |
Posted By: Gary S
Date Posted: June-26-2014 at 1:39am
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Oops even easier then ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: Tim D
Date Posted: June-26-2014 at 2:11pm
Counterclockwise viewing from the front?? ------------- Tim D |
Posted By: roncoo
Date Posted: June-26-2014 at 2:27pm
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Engine is a basket case. Found manual on this site and it says left rotation (counterclockwise). What parts do I look at to make sure which way the motor rotates? ------------- roncoo |
Posted By: SNobsessed
Date Posted: June-26-2014 at 7:47pm
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To me, the easiest way is to pull the starter & see which side of the flywheel teeth are worn. Otherwise, if crank is free, you can take valve cover off & watch the valve action on a cylinder. ------------- “Beer is proof that God loves us and wants us to be happy.” Ben Franklin |
Posted By: Capn Dan
Date Posted: June-28-2014 at 4:58pm
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I have a 1965 Ski Nautique. The engine is pumping oil out of rear main seal. I suspect a broken or cracked ring. What engine will swap with a Ford 312? ------------- Capn Dan |
Posted By: MrMcD
Date Posted: June-29-2014 at 5:55am
| Other than a 292 I think the 312 is unique. 292 and 312 were considered Y blocks. |
Posted By: 8122pbrainard
Date Posted: June-29-2014 at 8:31am
Correct. 252, 272, 292 and 312's are a Y block. A Y block is needed. ------------- /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 < |
MrMcD wrote:Posted By: Tim D
Date Posted: June-29-2014 at 6:01pm
I would change the rear main seal before swapping engines. ------------- Tim D |
Posted By: Gary S
Date Posted: June-29-2014 at 6:04pm
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I would too but either way it has to come out ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |