Hot Rod Forum : Hotrodders Bulletin Board - Reply to Topic -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine> 350 chevy pistons
User Name
lost password?   |   register now

Thread: 350 chevy pistons Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
01-30-2010 07:37 AM
zildjian4life218 I have pressed a few in myself with a 6 ton press. They were only 305 pistons so no big deal if i messed up. A few were tight afterwards but my machinist said as long as you can move them by hand it will be ok. Like stated above I wouldn't advise doing it yourself. I always run float pins if i have the choice.

Machine shops have a special fixture to hold the rod and piston so all the force is exerted on the rod and not the piston. The idea is the pin spins freely in the piston pin bores but is tight on the small end of the rod. So when you press the pin into the rod you want to be pressing against the rod not the side of the piston(if that makes any sense).

If they are stock cast pistons with stock rods that will be in a low rpm beater sure whatever try it, but anything mildly performance oriented spend the extra money to have the machinist do it. They will know what feels like a good fit or if its taking too much force.

Like cobalt said some places heat up the small end of the rod so it expands then it can be easily slid into position.
01-30-2010 06:34 AM
eloc431962 Welcome to the site.

01-29-2010 08:20 PM
Originally Posted by butchfig8
what is the secret for pressing wrist pins & piston onto rods,
a couple i have done seam tight
My machine shop uses heat to expand the pin end of the rod so the pin fits relatively easily into position. This has to be done in a deliberate fashion- if you don't get the pin positioned correctly, you have to press it back out and start over.

If you're doing it cold , you need to have the correct fixtures to avoid damaging the piston or pin/rod assembly. Frankly, I wouldn't advise this.
01-29-2010 07:57 PM
350 chevy pistons

grew up with john Deere 2 cyl, 1950's, learned to weld at 7, south east asia at 19, eng uw madison, race fig 8, build wrecks, looking for fishing partners.
Looking for answers about 350 chevy pistons.
Have new pistons, what is the secret for pressing wrist pins & piston onto rods,
a couple i have done seam tight

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 02:33 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999 - 2012. All Rights Reserved.