Re: 440- cam wont fit
[Re: 8urvette]
#3005755
01/15/22 10:12 PM
01/15/22 10:12 PM
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Joined: Jan 2003
Posts: 17,846 S.E. Michigan
ZIPPY
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 17,846
S.E. Michigan
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Measure old vs new bearing journals
Check the cam to see if it’s bent/a lathe and an indicator or V blocks and indicator
Really all you do is try to find out why
Rich H.
Esse Quam Videri
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Re: 440- cam wont fit
[Re: lewtot184]
#3005853
01/16/22 09:52 AM
01/16/22 09:52 AM
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Joined: Mar 2003
Posts: 9,100 Rogue River, OR
Jeremiah
master
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master
Joined: Mar 2003
Posts: 9,100
Rogue River, OR
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Once you find the interference by measuring you will know. Although the old cam with grooves trick works it makes I cringe for a number of reasons. Unless you pull down the engine that is likely to be your solution if you dont find iszue with the cam journal size. In my experience there usually a few tight cam journal bores towaed the back of the block.
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Re: 440- cam wont fit
[Re: Jeremiah]
#3005855
01/16/22 10:08 AM
01/16/22 10:08 AM
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Joined: Aug 2005
Posts: 760 Southington Ct.
turbobitt
super stock
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super stock
Joined: Aug 2005
Posts: 760
Southington Ct.
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I hear that undersized cam housing bores and bearing scraping is common on mopar big blocks. And just for reference, my old mega block had the 2nd and 3rd bores .001-.0015 undersized and had to be corrected.
AG.
1970 Challenger w/572 Hemi street car and my pride and joy.
1986 T-Type with 272 Stage 2 Buick V6 engine - True 8 second street car. Just updated the engine and put down 928 HP @ 35# boost to the ground on chasis dyno.
1976 Cee Bee Avenger Jet Boat - 460 Ford powered.
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Re: 440- cam wont fit
[Re: 8urvette]
#3005963
01/16/22 02:50 PM
01/16/22 02:50 PM
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Joined: Dec 2004
Posts: 10,554 Rittman Ohio
fourgearsavoy
I Live Here
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I Live Here
Joined: Dec 2004
Posts: 10,554
Rittman Ohio
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Has the OP even measured the journals against a "known good" cam yet to determine if the cam is an un- finished cam? He had a cam in the block already that turned smooth so why do so many people think the block or the bearings are at fault ? All we need to do is whip out even a cheap HF digital caliper and check it out Have seen more than one cam with wrong size journals Gus
64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60
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Re: 440- cam wont fit
[Re: 8urvette]
#3006126
01/17/22 06:56 AM
01/17/22 06:56 AM
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Joined: Jul 2003
Posts: 4,774 Holland MI Ottawa
2boltmain
master
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master
Joined: Jul 2003
Posts: 4,774
Holland MI Ottawa
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Saw a recent build on a guys YouTube channel and the journals on the new Comp Cam were oversized. Tech support reviewed the records and admitted to this mistake. The journals were corrected for free all though the builder obviously was out the time for having this all corrected.
Keep old mopars alive.
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