The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > General Truck Forums > Engine & Drivetrain

Web 67-72chevytrucks.com


 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
Old 02-25-2016, 06:41 PM   #1
BossHogg69
motor exploder
 
BossHogg69's Avatar
 
Join Date: Mar 2009
Location: Pittsburgh, PA
Posts: 2,346
If you like destruction -

then is thread is for you! I've been too butt hurt to post much about this yet, but a couple of weekends ago I hurt the motor (.060" over 454 bbc) in my '69 during a little test drive after installing a new AGR power steering pump and steering box. I hit an empty side street, hammered down on it in 2nd gear and spun it up to about 6500 rpm. Right when I let off for the stop sign coming up, I heard a metallic 'ping' (the expensive sounding one!) and immediately clutched it. The engine died as I clutched it and I coasted to a stop in a nearby parking lot. Long story short, I walked home, grabbed my daily driver and my trailer and towed it home. When I got it into my shop, I could see oil and a little coolant dripping out of the tailpipes - not good. No visible signs of anything exiting the block and no oil spray underneath. I left it sitting in the shop for a couple weeks too disgusted to mess with it. I finally got to pulling the spark plugs and found #1 hammered all to hell, coolant poured out of #4, 6 & 7, and #8 was soaked in clean oil. Needless to say the thing is toast, I'm hoping I can save some of it, since I had quite a bit of cash tied up in the valvetrain & heads (custom hyd roller, Crower rockers & springs, etc).

The thing only had about 1200 miles on it. The shortblock was machined and built by a local rebuilder, and after I had the work done I spoke to a few guys around town that said this guy doesn't have a great reputation for building hi-perf motors. An expensive lesson, but those are the ones you learn from or so my dad always told me when I was a kid. It had a couple annoying leaks right from the get go, and seemed to run hot more often that not, despite dual Derale electric fans and a big 2 row aluminum radiator. Just goes to show that if something doesn't seem right, chances are there is trouble ahead. I was easy on it for the first 500 miles, but drove the hell out of it after that. I'll be pulling it all out this weekend to disassemble it, hopefully I can do it without beating the heck out of the engine bay that I worked my a$$ off to get to my liking. I already have another bullet in the works, and no, it's not an LS engine.
Attached Images
    
__________________
Adam

1969 Chevy CST/10 stepside, DART Big M/TREMEC Magnum Extreme/3.73's w/Detroit Truetrac
1965 Chevy Bel Air Wagon (daily driver), 327/TH350,10 bolt w/3.08's
1961 Chevy Bel Air Sport Coupe, ZZ454/M21/9" rear w/3.50's & Detroit Truetrac
2005 GMC 1500 ccsb 2wd, 6.0L/4L65e/3.73 G80
2006 GMC 2500HD ccsb 4x4, DMax LBZ/Allison 6spd/4.56's w/Detroit TrueTrac

Use the SEARCH function on this forum - it is your friend!!

Last edited by BossHogg69; 02-25-2016 at 06:48 PM.
BossHogg69 is offline   Reply With Quote
 

Bookmarks

Tags
454, bbc, big block, big block chevy


Posting Rules
You may not post new threads
You may not 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

Forum Jump


All times are GMT -4. The time now is 03:20 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com