Go Back  Offshoreonly.com > Technical > General Q & A
Gen VI 489 +20 build >

Gen VI 489 +20 build

Notices

Gen VI 489 +20 build

Thread Tools
 
Old 01-04-2017, 07:52 PM
  #31  
SB
Registered
iTrader: (1)
 
Join Date: Nov 2004
Location: On A Dirt Floor
Posts: 13,546
Received 3,117 Likes on 1,403 Posts
Default

Industrial/agricultual; pumps. generators, etc.....big market

There is a 632 (10.2L) out there with piston oilers and etc. Cool !
SB is offline  
Old 01-04-2017, 08:02 PM
  #32  
SB
Registered
iTrader: (1)
 
Join Date: Nov 2004
Location: On A Dirt Floor
Posts: 13,546
Received 3,117 Likes on 1,403 Posts
Default

Originally Posted by mike tkach
what was the price tag on it,looks interesting.
http://www.jegs.com/i/Chevrolet-Perf...28586/10002/-1

http://paceperformance.com/i-1999064...te-engine.html
SB is offline  
Old 01-04-2017, 09:39 PM
  #33  
Registered
iTrader: (3)
 
Join Date: Jul 2004
Location: chicago
Posts: 11,332
Received 71 Likes on 39 Posts
Default

Originally Posted by HawkX66
There are a few different versions. Mine had these heads. P/N: 19256821 2.06"/1.72" valves.




Here's the new heads:



Hard to tell on my phone, but man, that looks like some big ridges around the valves. I would think that would really kill airflow and create some hotspots
MILD THUNDER is offline  
Old 01-04-2017, 09:45 PM
  #34  
Registered
iTrader: (7)
 
Join Date: Feb 2009
Location: NW Michigan
Posts: 8,302
Received 1,493 Likes on 807 Posts
Default

Originally Posted by MILD THUNDER
Hard to tell on my phone, but man, that looks like some big ridges around the valves. I would think that would really kill airflow and create some hotspots
Could use some chamber work for sure. About 3-4 cc's worth but I'm sure it will run well.
getrdunn is offline  
Old 01-05-2017, 07:52 AM
  #35  
Registered
Thread Starter
 
Join Date: Jan 2017
Location: SE Virginia/NH
Posts: 315
Received 87 Likes on 50 Posts
Default

Originally Posted by MILD THUNDER
Hard to tell on my phone, but man, that looks like some big ridges around the valves. I would think that would really kill airflow and create some hotspots
Originally Posted by getrdunn
Could use some chamber work for sure. About 3-4 cc's worth but I'm sure it will run well.
Those pics were the heads before they had the work done. They'll definitely get some smoothing out.

So just to be sure, there's no way to block off the extra coolant passage on the Gen VI without the Gen VI gasket and it is necessary? I just want to make sure there wasn't any confusion with all the Mk IV vs Gen VI talk.
HawkX66 is offline  
Old 01-05-2017, 04:26 PM
  #36  
Lee
Gold Member
Gold Member
iTrader: (4)
 
Lee's Avatar
 
Join Date: Oct 2000
Location: Lake St.Clair MI
Posts: 1,690
Received 26 Likes on 7 Posts
Default

Great looking Camaro!!
Lee is offline  
Old 01-09-2017, 07:05 AM
  #37  
Registered
Thread Starter
 
Join Date: Jan 2017
Location: SE Virginia/NH
Posts: 315
Received 87 Likes on 50 Posts
Default

I got my heads back this weekend and the coolant pouring up into the intake theory with Mk IV gaskets on a Gen 6 block doesn't work... The coolant passages in the head are connected. Can anyone else explain why you wouldn't want to run Mk IV gaskets on a Gen 6? I just don't see it. The only difference is the extra passage isn't machined on the block.





Here's what my bowls look like now. It doesn't look like there is any real shrouding going on. I might still smooth them out a little and polish them. We'll see.




Again, thanks for any help.
HawkX66 is offline  
Old 01-09-2017, 09:38 AM
  #38  
Registered
iTrader: (2)
 
Join Date: Aug 2010
Location: Cape Coral FL
Posts: 2,114
Received 420 Likes on 253 Posts
Default

Have you checked Cometic's website for the correct gaskets? They have a great selection for the gen 6 blocks. No need to chance it if the correct gasket is readily available
snapmorgan is offline  
Old 01-09-2017, 01:10 PM
  #39  
Registered
Thread Starter
 
Join Date: Jan 2017
Location: SE Virginia/NH
Posts: 315
Received 87 Likes on 50 Posts
Default

Originally Posted by snapmorgan
Have you checked Cometic's website for the correct gaskets? They have a great selection for the gen 6 blocks. No need to chance it if the correct gasket is readily available
I'll check them out. I was looking at Jegs and Summit. Still, looking at it, it doesn't look like it's an issue. Thanks.
HawkX66 is offline  
Old 01-09-2017, 01:24 PM
  #40  
Registered
iTrader: (3)
 
Join Date: Jul 2004
Location: chicago
Posts: 11,332
Received 71 Likes on 39 Posts
Default

...
Attached Thumbnails Gen VI 489 +20 build-bbcgasketma.jpg  
MILD THUNDER is offline  


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.