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Check c.i. displacement without removing heads ?

Printed From: TheAMCForum.com
Category: Competition
Forum Name: Autocross, circle track
Forum Description: Ralleys, autocross, non-drag racing events and conversations
URL: https://theamcforum.com/forum/forum_posts.asp?TID=108238
Printed Date: Jan/15/2021 at 3:39pm
Software Version: Web Wiz Forums 12.03 - http://www.webwizforums.com


Topic: Check c.i. displacement without removing heads ?
Posted By: acme
Subject: Check c.i. displacement without removing heads ?
Date Posted: Nov/15/2020 at 10:01pm
Is there a tool that will check cubic inch displacement by using the spark plug hole, without removing the heads to measure the bore & stroke?

If so, where is the best place for me to find one of these tools ?
What do you call it ?

My block is a 401 but I found some interesting marks when cleaning the engine and I'd like to know if it has been de-stroked to 304, etc..

Or, is the only way by removing the head to measure bore and stroke ?

Thanks

Mike





Replies:
Posted By: WesternRed
Date Posted: Nov/15/2020 at 11:12pm
It's normally referred to as a swept volume test and is a common test in motorsports to prevent cheating.

This is a fairly expensive test rig, probably cheaper options out there:

https://www.speedwaymotors.com/Speedway-Engine-Cubic-Inch-Tester-Tool,703.html" rel="nofollow - https://www.speedwaymotors.com/Speedway-Engine-Cubic-Inch-Tester-Tool,703.html

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I've finally given up drinking for good...........now I only drink for evil.


Posted By: acme
Date Posted: Nov/16/2020 at 10:05am
Thank You !

I'll check my local machine shop and keep my eyes open on Ebay.


Posted By: 6PakBee
Date Posted: Nov/16/2020 at 10:09am
Originally posted by WesternRed WesternRed wrote:

It's normally referred to as a swept volume test and is a common test in motorsports to prevent cheating.

This is a fairly expensive test rig, probably cheaper options out there:

https://www.speedwaymotors.com/Speedway-Engine-Cubic-Inch-Tester-Tool,703.html" rel="nofollow - https://www.speedwaymotors.com/Speedway-Engine-Cubic-Inch-Tester-Tool,703.html

Wow.  For $1000 bucks I'd pull a head!!!


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Roger Gazur
1969 'B' Scheme SC/Rambler
1970 RWB 4-spd Machine
1970 Sonic Silver auto AMX

All project cars.

"Shotgunning works great for pheasants, not so great for electrical problems"



Posted By: WesternRed
Date Posted: Nov/16/2020 at 4:14pm
You could probably make something fairly cheaply to do the job.

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I've finally given up drinking for good...........now I only drink for evil.



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