AMC V8 Engine Repair and Modifications

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water pump swap

Printed From: TheAMCForum.com
Category: The Garage
Forum Name: AMC V8 Engine Repair and Modifications
Forum Description: AMC-made V8 engine mechanical, ignition and fuel from basic repair to high-perf modifications
URL: https://theamcforum.com/forum/forum_posts.asp?TID=90820
Printed Date: Apr/24/2024 at 3:45am
Software Version: Web Wiz Forums 12.03 - http://www.webwizforums.com

Topic: water pump swap

Posted By: Ralph G.
Subject: water pump swap
Date Posted: Nov/13/2017 at 1:41pm

Can I use a later (long nose) water pump and its pulley on a '68 390 and have the alternator and power steering belts still line up?

Replies:

Posted By: White70JavelinSST
Date Posted: Nov/13/2017 at 4:40pm

I did that on a 70 390. I used the three groove crank pulley from a 70 360 Javelin with AC, the three groove water pump pulley from a 77 401 Wagoneer with AC and an aluminum long nose water pump made for the later engines and the belts line up.

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70 Javelin SST, second owner, purchased 1972

Posted By: Ralph G.
Date Posted: Nov/13/2017 at 6:16pm

Thank you!

Posted By: Red20
Date Posted: Nov/14/2017 at 1:56pm

If none of that works out and you just end up looking for a short snout pump, the aluminum Edelbrock water pump for early engines is a good fit though pricey.

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1969 Javelin SST "Screamin' Banana" - Totaled Feb 2018
1973 Hornet Sportabout X "yellajack" - 360/727/TracLoc DAILY DRIVER

Posted By: Ralph G.
Date Posted: Nov/14/2017 at 4:47pm

I bought a short shaft one for my driver at Galvin's a few months ago. I was asking about a future project I'm considering.