502 exhaust manifolds
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=42675
Printed Date: October-06-2024 at 6:48pm
Topic: 502 exhaust manifolds
Posted By: fvmako17
Subject: 502 exhaust manifolds
Date Posted: April-25-2018 at 11:01pm
|
recently tried order new exhaust manifolds and risers for a 99 nautique super sport with 8.2L 502 python motor. They do not make anymore (discontinued) Does anybody have an idea where I could get or something that is close? thanks
|
Replies:
Posted By: gt40KS
Date Posted: April-26-2018 at 12:14am
Being a GM block, you might look at Mercruiser replacements. You'd likely have to change the manifolds and risers and also extend or at least modify the exhaust hose thereafter to make it work for your app, but it's a start
-------------
JCCI
1995 Ski Nautique GT40
|
Posted By: TRBenj
Date Posted: April-26-2018 at 12:30am
??
http://www.skidim.com/mobile/MANIFOLD-EXHAUST-BIG-BLOCK-GM/productinfo/R028010/" rel="nofollow - http://www.skidim.com/mobile/MANIFOLD-EXHAUST-BIG-BLOCK-GM/productinfo/R028010/
|
Posted By: fvmako17
Date Posted: April-26-2018 at 12:33am
|
thanks. i think the harder part is the riser. it is part #R029004 but i cant find it.
|
Posted By: fvmako17
Date Posted: April-26-2018 at 12:34am
Posted By: Gary S
Date Posted: April-26-2018 at 12:39am
Thought all the risers were the same no matter what engine or displacement or is a 502 different from a 454?
http://www.skidim.com/RISER-EXHAUST-35-HO-FORD_GM/productinfo/R029011/" rel="nofollow - skidim link to risers
-------------
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: fvmako17
Date Posted: April-26-2018 at 12:52am
risers are similar but its size, angle, and length are different. i think 3" common but these are 4" or 3 1/2"
They are also long from top of riser to outlet.
http://inetmarine.com/pcmr029004riserexhaust454.aspx
|
Posted By: gt40KS
Date Posted: April-26-2018 at 12:59am
Kenny, you may want to double check that manifold that Terry posted above. Looks like it's for a traditional BBC - i.e. 454 -- I'm not 100% sure that will work for a 502
-------------
JCCI
1995 Ski Nautique GT40
|
Posted By: gt40KS
Date Posted: April-26-2018 at 1:02am
Ok, never mind .... just checked Stainless Marine and they are compatible.
-------------
JCCI
1995 Ski Nautique GT40
|
Posted By: KENO
Date Posted: April-26-2018 at 9:19am
Maybe you tried this place in the link, maybe you didn't.
https://www.marinepartsguys.com/cart/" rel="nofollow - link
It let me put 2 in the cart without any little message popping up to say they're out of stock.
Maybe they have them, maybe they don't but a phone call should tell you.
|
Posted By: fvmako17
Date Posted: April-26-2018 at 9:37am
|
Thanks I will check it out
|
|