Block modification?

gofastorgohome · 07-15-2009, 08:58 AM

Any opinions on modifying a block to accept a larger journal camshaft in a motor for Stock? I've heard differing opinions from different tech folks but am curious if anything "official" has ever came from Glendora. I have my own opinion, but am curious what kind of "discussion" this may generate...

gofastorgohome · 07-15-2009, 11:21 AM

Do you know of anybody torn down that has done this block mod. and passed?

gofastorgohome · 07-16-2009, 08:28 PM

Wow! The silence is deafening...LOL. That's the response I thought I'd get... at least we are predictable.

Tom Moock · 07-17-2009, 12:01 AM

Gofastorgohome, Are you talking about roller cam bearing? I no expert on the subject,but I was told you have to use a billet cam and you have a problem with lifter`s, They said nascar racer`s have a way to do it, but it`s high dollar. I don`t know about motors that run stock roller lifter`s. Tom

gofastorgohome · 07-17-2009, 07:59 AM

[QUOTE=Tom Moock;130295]Gofastorgohome, Are you talking about roller cam bearing?

No, I'm talking about the ability to use a larger radius for the lobes to be ground on.

Mike Taylor 3601 · 07-17-2009, 08:53 AM

You can buy them if you want one. Have'nt looked real close but I don't think rules say you can't run one
if that is correct means probaly have'nt caught one therefore no rule yet? I think I know guy who had
vaccumn leak rule made after.My Dad told me in early 70's @BlueGrass& Clay City ,Terry Butcher had 2Bbl stocker 60 chevy?
283 Idled so rich could'nt stand behind it revved it cleaned out ran way under record eventaully pulled air cleaner off carb had springs holding down, linkage short, when wide open raise carb off intake, he said a couple weeks later Natl. dragster had rule revision about vaccumn leaks,whether Terry caused that rule
or not I'm not sure but I think he was close.
Mike Taylor 3601

07-15-2009, 08:58 AM	#1
gofastorgohome Junior Member Join Date: Mar 2008 Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Block modification? Any opinions on modifying a block to accept a larger journal camshaft in a motor for Stock? I've heard differing opinions from different tech folks but am curious if anything "official" has ever came from Glendora. I have my own opinion, but am curious what kind of "discussion" this may generate... Last edited by gofastorgohome; 07-15-2009 at 08:59 AM. Reason: punctuation

07-15-2009, 11:21 AM	#2
gofastorgohome Junior Member Join Date: Mar 2008 Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Re: Block modification? Do you know of anybody torn down that has done this block mod. and passed?

07-16-2009, 08:28 PM	#3
gofastorgohome Junior Member Join Date: Mar 2008 Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Re: Block modification? Wow! The silence is deafening...LOL. That's the response I thought I'd get... at least we are predictable.

07-17-2009, 12:01 AM	#4
Tom Moock Senior Member Join Date: May 2004 Posts: 801 Likes: 1 Liked 10 Times in 6 Posts	Re: Block modification? Gofastorgohome, Are you talking about roller cam bearing? I no expert on the subject,but I was told you have to use a billet cam and you have a problem with lifter`s, They said nascar racer`s have a way to do it, but it`s high dollar. I don`t know about motors that run stock roller lifter`s. Tom __________________ Tom Moock 5704 STK

07-17-2009, 07:59 AM	#5
gofastorgohome Junior Member Join Date: Mar 2008 Posts: 11 Likes: 0 Liked 0 Times in 0 Posts	Re: Block modification? [QUOTE=Tom Moock;130295]Gofastorgohome, Are you talking about roller cam bearing? No, I'm talking about the ability to use a larger radius for the lobes to be ground on.

07-17-2009, 08:53 AM	#6
Mike Taylor 3601 VIP Member Join Date: Oct 2008 Location: Somerset,Ky Posts: 1,371 Likes: 352 Liked 306 Times in 103 Posts	Re: Block modification? You can buy them if you want one. Have'nt looked real close but I don't think rules say you can't run one if that is correct means probaly have'nt caught one therefore no rule yet? I think I know guy who had vaccumn leak rule made after.My Dad told me in early 70's @BlueGrass& Clay City ,Terry Butcher had 2Bbl stocker 60 chevy? 283 Idled so rich could'nt stand behind it revved it cleaned out ran way under record eventaully pulled air cleaner off carb had springs holding down, linkage short, when wide open raise carb off intake, he said a couple weeks later Natl. dragster had rule revision about vaccumn leaks,whether Terry caused that rule or not I'm not sure but I think he was close. Mike Taylor 3601