Go Back  Offshoreonly.com > Technical > General Q & A
Cam and valvetrain longevity....??? low duration high lift... >

Cam and valvetrain longevity....??? low duration high lift...

Notices

Cam and valvetrain longevity....??? low duration high lift...

Thread Tools
 
Old 09-23-2016 | 09:43 PM
  #491  
Registered
15 Year Member
 
Joined: Apr 2006
Posts: 10,042
Likes: 712
From: Toledo Oh
Default

Originally Posted by MILD THUNDER
Interestingly, I was drinking from an "Allstate Carbs" coffee mug I recieved free when ordering some carb parts last year.

Would it kill Bob to throw in a MK hat or koozy when ordering cams and heads? Maybe Tim would feel better about his situation if he had a hat to keep his head warm and beer cold.
How can you say you have been there if you dont have the T Shirt???
phragle is offline  
Old 09-23-2016 | 09:45 PM
  #492  
Registered
20 Year Member
 
Joined: Jul 2004
Posts: 11,332
Likes: 73
From: chicago
Default

Originally Posted by phragle
How can you say you have been there if you dont have the T Shirt???
Exactly.

For christmas, I might get tim a Tee shirt with his dyno sheet printed on the back.
MILD THUNDER is offline  
Old 09-24-2016 | 06:19 AM
  #493  
Full Force's Avatar
Thread Starter
Gold Member
20 Year Member
Gold Member
 
Joined: Oct 2005
Posts: 11,688
Likes: 216
From: Olmsted Falls,Ohio Marblehead,Oh
Default

I can say one thing, the cams that erson custom ground for my old engines moved this slug VERY well, the acceleration was WAY better from 4000-5500...
Originally Posted by Black Baja
Never gonna happen on Nickersons dyno. After the first pull he's going to tell him the cam is all wrong and he has a guy down the street that custom grinds his cams for $500. His custom cams are actually $250 Erson cams... It will make 100hp more on his dyno with the custom Erson shelf grind.
Full Force is offline  
Old 09-24-2016 | 06:21 AM
  #494  
Full Force's Avatar
Thread Starter
Gold Member
20 Year Member
Gold Member
 
Joined: Oct 2005
Posts: 11,688
Likes: 216
From: Olmsted Falls,Ohio Marblehead,Oh
Default

yep, Ray assembled 4 corners and checked deck, the square decked block to .010 in the hole... then checked and verified again, we also did when degreeing cams..
Originally Posted by MILD THUNDER
I'd be pretty thorough on the measurements, and certainly account for and measure piston rock. When I am putting together an engine, I measure the piston to deck height with a deck bridge and dial indicator after the shortblock is assembled. once those measurments are taken, THEN gaskets are ordered.

IMO, the benefits, do not outweigh the risks of playing with extremely tight quenches, on a bbc, unless you are building an all out competition engine. If the piston is at 0 deck, .027 is playing with fire, even with a steel rod. Staying in the .040-.060 range, is fine for a N/A build, and most forced induction builds.

I would imagine that Bob M, spec'd those gaskets, assuming the blocks were being zero decked. I don't know how anyone would know the specific blocks deck height, without physically measuring, if in fact, the block was anything other than zero deck. Unless they are virgin blocks from world products, but even then?
Full Force is offline  
Old 09-24-2016 | 06:23 AM
  #495  
Full Force's Avatar
Thread Starter
Gold Member
20 Year Member
Gold Member
 
Joined: Oct 2005
Posts: 11,688
Likes: 216
From: Olmsted Falls,Ohio Marblehead,Oh
Default

I got some sweet labels on my lifters!!!! lol
Originally Posted by MILD THUNDER
Interestingly, I was drinking from an "Allstate Carbs" coffee mug I recieved free when ordering some carb parts last year.

Would it kill Bob to throw in a MK hat or koozy when ordering cams and heads? Maybe Tim would feel better about his situation if he had a hat to keep his head warm and beer cold.
Full Force is offline  
Old 09-24-2016 | 06:25 AM
  #496  
Full Force's Avatar
Thread Starter
Gold Member
20 Year Member
Gold Member
 
Joined: Oct 2005
Posts: 11,688
Likes: 216
From: Olmsted Falls,Ohio Marblehead,Oh
Default

I wondered that myself... the things that make you go hmmmmm....

I have a feeling I was Bobs experiment that went bad, and he surely picked the wrong guy... the internet a-hole to expose him, after all the slack I get for it... I would do it again in a heartbeat...

Originally Posted by MILD THUNDER
Lets not get off topic just yet. We havent hit 50 pages yet.

I wonder what the science is, behind the fact, Timmys 540ci engines, with AFR 325 heads, got a 241/246 cam, and the tight quench guy, gets a 242/247 cam, with a little less lift? Both have flat top pistons, 4150 carbs, both heads milled to 114cc... Why the change?
Full Force is offline  
Old 09-24-2016 | 06:26 AM
  #497  
Full Force's Avatar
Thread Starter
Gold Member
20 Year Member
Gold Member
 
Joined: Oct 2005
Posts: 11,688
Likes: 216
From: Olmsted Falls,Ohio Marblehead,Oh
Default

Lolololol 2XL.... I'm fat haha

Originally Posted by mild thunder
exactly.

For christmas, i might get tim a tee shirt with his dyno sheet printed on the back.
Full Force is offline  
Old 09-24-2016 | 06:26 AM
  #498  
cigrocket's Avatar
Registered
20 Year Member
 
Joined: Feb 2004
Posts: 2,590
Likes: 173
From: Endicott, NY
Default

Originally Posted by MILD THUNDER
Interestingly, I was drinking from an "Allstate Carbs" coffee mug I recieved free when ordering some carb parts last year.

Would it kill Bob to throw in a MK hat or koozy when ordering cams and heads? Maybe Tim would feel better about his situation if he had a hat to keep his head warm and beer cold.

You should be drinking out of the engine builders mug
Attached Thumbnails Cam and valvetrain longevity....??? low duration high lift...-img_0680.jpg  
cigrocket is offline  
Old 09-24-2016 | 06:38 AM
  #499  
Registered
 
Joined: Aug 2011
Posts: 2,733
Likes: 8
From: bel air, md
Default

Originally Posted by Full Force
I can say one thing, the cams that erson custom ground for my old engines moved this slug VERY well, the acceleration was WAY better from 4000-5500...
I would expect it to with a bigger arm spinning around. Acceleration gets better and better the bigger the crank even with junk heads on the motor. I kept same heads went from 4.5 stroke to 4.75 stroke and difference was night and day. 4.75 felt like a blower was added. Added 30* of duration to the cam with the bigger stroke.
Black Baja is offline  
Old 09-24-2016 | 06:44 AM
  #500  
Full Force's Avatar
Thread Starter
Gold Member
20 Year Member
Gold Member
 
Joined: Oct 2005
Posts: 11,688
Likes: 216
From: Olmsted Falls,Ohio Marblehead,Oh
Default

ya guess so, the only the dude did right that built them old engines was get parts that worked together very well...
Originally Posted by Black Baja
I would expect it to with a bigger arm spinning around. Acceleration gets better and better the bigger the crank even with junk heads on the motor. I kept same heads went from 4.5 stroke to 4.75 stroke and difference was night and day. 4.75 felt like a blower was added. Added 30* of duration to the cam with the bigger stroke.
Full Force is offline  


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

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.