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48� cam core question #1590426 03/09/14 02:31 PM 03/09/14 02:31 PM
Joined: Sep 2012 Posts: 1,563 Janesville, WI SpareParts OP pro stock
SpareParts OP pro stock Joined: Sep 2012 Posts: 1,563 Janesville, WI	On a block with standard can journals is there a different can core because of the 48� lifters or is a standard can okay to use? Thanks, first of many questions to come

Re: 48� cam core question [Re: SpareParts] #1590427 03/09/14 03:28 PM 03/09/14 03:28 PM
Joined: May 2003 Posts: 13,198 aZLiViN J J_BODY I Live Here
J_BODY I Live Here J Joined: May 2003 Posts: 13,198 aZLiViN	it took literally four months to find a usable core for my 9.2 deck 340 main, 48* siamese block with the babbit journals.

Re: 48� cam core question [Re: J_BODY] #1590428 03/09/14 03:33 PM 03/09/14 03:33 PM
Joined: Jan 2003 Posts: 2,155 Tucson, Arizona clonestocker top fuel
clonestocker top fuel Joined: Jan 2003 Posts: 2,155 Tucson, Arizona	Jay, You never checked with the right person [img] [/img]

Re: 48� cam core question [Re: clonestocker] #1590429 03/09/14 03:41 PM 03/09/14 03:41 PM
Joined: Nov 2004 Posts: 4,330 Lynchburg, VA Leon441 master
Leon441 master Joined: Nov 2004 Posts: 4,330 Lynchburg, VA	I may still have a 48 degree for standard cam journals. That are several 48 degree cores. standard journal, 2" babbit. 50mm roller, 60mm roller. Now I hear some have ran a 55mm roller. If you waited months for one you did not call the right people. Leon Career best 8.02 @ 169 at 3050# and 10" tires small block power.

Re: 48� cam core question [Re: Leon441] #1590430 03/09/14 05:28 PM 03/09/14 05:28 PM
Joined: Sep 2012 Posts: 1,563 Janesville, WI SpareParts OP pro stock
SpareParts OP pro stock Joined: Sep 2012 Posts: 1,563 Janesville, WI	Quote: I may still have a 48 degree for standard cam journals. That are several 48 degree cores. standard journal, 2" babbit. 50mm roller, 60mm roller. Now I hear some have ran a 55mm roller. If you waited months for one you did not call the right people. Leon So there is a difference between a 48� cam and a 59� cam? This is an R1 block BTW. A standard cam out of my 360 fits perfect.

Re: 48� cam core question [Re: SpareParts] #1590431 03/09/14 07:22 PM 03/09/14 07:22 PM
Joined: Jan 2003 Posts: 5,486 SoCal Brian Hafliger master
Brian Hafliger master Joined: Jan 2003 Posts: 5,486 SoCal	So you guys have BBC main journal cam cores? Great, how much are you asking? What lobe sizes? What lca? Thanks for letting us know!! Brian Hafliger

Re: 48� cam core question [Re: Brian Hafliger] #1590432 03/09/14 07:28 PM 03/09/14 07:28 PM
Joined: Nov 2009 Posts: 3,082 St. Paul , Mn. tubtar master
tubtar master Joined: Nov 2009 Posts: 3,082 St. Paul , Mn.	Is your block actually 48 degree ? I think most of the R-1's were 59 , but it's easy enough to tell. The 48 degree lifter bores will be visibly further away from the valley wall than the 59 degree.....and with the different lifter center line , you need to compensate for this with lobe location. I don't think you can grind a 48 degree profile on a 59 degree blank , but I could be wrong. I seriously doubt an aggressive profile could be done. Last edited by tubtar; 03/09/14 07:34 PM.

Re: 48� cam core question [Re: tubtar] #1590433 03/09/14 07:33 PM 03/09/14 07:33 PM
Joined: Sep 2012 Posts: 1,563 Janesville, WI SpareParts OP pro stock
SpareParts OP pro stock Joined: Sep 2012 Posts: 1,563 Janesville, WI	Quote: Is your block actually 48 degree ? I think most of the R-1's were 59 , but it's easy enough to tell. Yes, it is in fact 48�, it's got the goofy looking valley lol.

Re: 48� cam core question [Re: SpareParts] #1590434 03/09/14 07:43 PM 03/09/14 07:43 PM
Joined: Nov 2009 Posts: 3,082 St. Paul , Mn. tubtar master
tubtar master Joined: Nov 2009 Posts: 3,082 St. Paul , Mn.	Don't let the filled in valley be your guide.......340 replacement had this too , but it doesn't mean you have a 48 degree block. The lifter bore center lines are roughly 1/2 " further from the valley wall on a 48 degree. 59 degree bores are very close to the valley wall and if you see the two side by side , it is easy to tell them apart.

Re: 48� cam core question [Re: tubtar] #1590435 03/09/14 07:54 PM 03/09/14 07:54 PM
Joined: Sep 2012 Posts: 1,563 Janesville, WI SpareParts OP pro stock
SpareParts OP pro stock Joined: Sep 2012 Posts: 1,563 Janesville, WI	Quote: Don't let the filled in valley be your guide.......340 replacement had this too , but it doesn't mean you have a 48 degree block. The lifter bore center lines are roughly 1/2 " further from the valley wall on a 48 degree. 59 degree bores are very close to the valley wall and if you see the two side by side , it is easy to tell them apart. Good advice, I should have mentioned that the part number says it's 48.... that would have saved us some posts lol, scatter brained today It's P4532435 if that helps Last edited by SpareParts; 03/09/14 07:58 PM.

Re: 48� cam core question [Re: Brian Hafliger] #1590436 03/09/14 08:11 PM 03/09/14 08:11 PM
Joined: May 2003 Posts: 13,198 aZLiViN J J_BODY I Live Here
J_BODY I Live Here J Joined: May 2003 Posts: 13,198 aZLiViN	Quote: So you guys have BBC main journal cam cores? Great, how much are you asking? What lobe sizes? What lca? Thanks for letting us know!! yeah I kinda thought we contacted quite a few folks on this matter...

Re: 48� cam core question [Re: J_BODY] #1590437 03/09/14 08:51 PM 03/09/14 08:51 PM
Joined: Jan 2003 Posts: 1,784 PA W5DART66 top fuel
W5DART66 top fuel Joined: Jan 2003 Posts: 1,784 PA	The king of small block Knowledge has spoken ......... But until about 2 Months ago you could not get 48* 1.998" plain bearing cams. Danny may at midway performance (Predator cams) had 150 cores made On side note the OP the 48* with stepped bearings in stock at 2 or 3 cam grinders much easier to get the core you need

Re: 48� cam core question [Re: SpareParts] #1590438 03/09/14 09:03 PM 03/09/14 09:03 PM
Joined: Mar 2004 Posts: 702 OZ C CRIKEY super gas
CRIKEY super gas C Joined: Mar 2004 Posts: 702 OZ	To answer your question NO you cant use a 59� cam in a 48� block even if the journals are the same.

Re: 48� cam core question [Re: CRIKEY] #1590439 03/09/14 09:13 PM 03/09/14 09:13 PM
Joined: Sep 2012 Posts: 1,563 Janesville, WI SpareParts OP pro stock
SpareParts OP pro stock Joined: Sep 2012 Posts: 1,563 Janesville, WI	Thanks guys. Sad story I got to really looking it over at the shop after tubtar's posts, it looks like it's a 59� so must be a resto block?? Idk I searched the part number and found a ton of stuff saying it's 48� but sure doesn't look different. I'm into it cheap and it's better than what I had so it's not a total loss.

Re: 48� cam core question [Re: SpareParts] #1590440 03/09/14 09:19 PM 03/09/14 09:19 PM
Joined: Oct 2007 Posts: 3,978 Hilltown Pa 1967dartgt master
1967dartgt master Joined: Oct 2007 Posts: 3,978 Hilltown Pa	Quote: Thanks guys. Sad story I got to really looking it over at the shop after tubtar's posts, it looks like it's a 59� so must be a resto block?? Idk I searched the part number and found a ton of stuff saying it's 48� but sure doesn't look different. I'm into it cheap and it's better than what I had so it's not a total loss. Some of the blocks were messed up and had 48* cam core with 59* lifter valley! hope it's not one of those. Brett Miller W9 cnc'd heads STR Chassis fabraction

Re: 48� cam core question [Re: SpareParts] #1590441 03/09/14 09:22 PM 03/09/14 09:22 PM
Joined: Oct 2007 Posts: 3,978 Hilltown Pa 1967dartgt master
1967dartgt master Joined: Oct 2007 Posts: 3,978 Hilltown Pa	But I do have a 48* r1 block. So they are made. Brett Miller W9 cnc'd heads STR Chassis fabraction

Re: 48� cam core question [Re: 1967dartgt] #1590442 03/09/14 09:24 PM 03/09/14 09:24 PM
Joined: Sep 2012 Posts: 1,563 Janesville, WI SpareParts OP pro stock
SpareParts OP pro stock Joined: Sep 2012 Posts: 1,563 Janesville, WI	I think I am alright, it fit a 59� cam just fine. I am new to the after market blocks and went off the part number (as did the seller) so no bad blood, I learned another lesson as I see it. And it was a deal, I've sold stock blocks for more. I'll try and get it checked out by someone who knows it before I buy more lessons lol Last edited by SpareParts; 03/09/14 09:25 PM.

Re: 48� cam core question [Re: SpareParts] #1590443 03/09/14 09:28 PM 03/09/14 09:28 PM
Joined: Sep 2012 Posts: 1,563 Janesville, WI SpareParts OP pro stock
SpareParts OP pro stock Joined: Sep 2012 Posts: 1,563 Janesville, WI	How would a fella tell if it was for a 48� cam core? Bare with me guys I'm learning

Re: 48� cam core question [Re: SpareParts] #1590444 03/09/14 09:39 PM 03/09/14 09:39 PM
Joined: Jun 2003 Posts: 52,972 Romeo MI MR_P_BODY Master
MR_P_BODY Master Joined: Jun 2003 Posts: 52,972 Romeo MI	Quote: Quote: Is your block actually 48 degree ? I think most of the R-1's were 59 , but it's easy enough to tell. Yes, it is in fact 48�, it's got the goofy looking valley lol. Then yes there is a special cam blank for a 48* babbit block... a 59* the lifters are farther apart on the cam itself and not ground on a 48* lifter angle so no a 59* will NOT work

Re: 48� cam core question [Re: 1967dartgt] #1590445 03/09/14 10:07 PM 03/09/14 10:07 PM
Joined: Jun 2010 Posts: 3,112 LONG ISLAND fishy340 master
fishy340 master Joined: Jun 2010 Posts: 3,112 LONG ISLAND	Same here my r1a is so old that little plates were welded over the cam tunnel,thats how they use to beef it up. I never ever saw a 59* block with the area above the cam solid like a 48* and i've had 3 restoration blocks which in my eyes is 100% an r series block.I wish i could post the picture instead of having to ask Brad or Brett..:)

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