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350 Block casting number 14093638

  
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350 Block casting number 14093638

 
Rich9164809 Rich9164809
New User | Posts: 4 | Joined: 09/11
Posted: 09/23/11
06:23 PM

Hello to all,
I purchased a block to use in my 80 Corvette. Not knowing this block designed to be used with a roller cam or a standard camshaft depending when what year the block was manufactured I am lost with the following problem. After looking at this block it was built for a standard camshaft not a roller. The 2 holes are present but not tapped in the front of the engine where the camshaft thrust plate would mount to prevent the roller camshaft from " walking " forward. My question if anybody can help me - I Installed a roller camshaft for a non roller block - the back of the timing gear of the camshaft rubs the block where the " thrust plate " would mount too if it was built with a roller camshaft. If this block could be used with either camshaft ( you would have to tap the 2 holes for the thrust plate for a roller camshaft ) why does the camshaft gear rub ? Does it take a special camshaft gear ? What am I missing - thank you for help in advance...  

waynep7122 waynep7122
Guru | Posts: 1130 | Joined: 08/09
Posted: 09/23/11
08:24 PM

14093638...350...87-95...2 or 4...Roller or flat tappet cam, one-piece rear seal

to start out with the info....  

Rich9164809 Rich9164809
New User | Posts: 4 | Joined: 09/11
Posted: 09/24/11
10:50 AM

Was the face of the flat tappet camshaft designed different when used in this block? Did they use a different camshaft gear with the flat tappet camshaft when it was supplied with this block ? By this I mean is the gear designed diiferent from a 350 camshaft gear supplied with 69 Camaro ?  

Pontiacman2 Pontiacman2
Moderator | Posts: 8956 | Joined: 09/08
Posted: 09/24/11
11:43 AM

What style of timing set are you using?  
Pontiacman2
Pontiacman2

Professional Hi-performance engine builder

Rich9164809 Rich9164809
New User | Posts: 4 | Joined: 09/11
Posted: 09/24/11
06:32 PM

Edelbrock 7800 gear / chain set double roller chain - thank you for your help  

chevelle83 chevelle83
Addict | Posts: 2280 | Joined: 11/09
Posted: 09/25/11
03:04 PM

the factory roller cams use the thrust plate, that keeps the cam from walking in the block.

some of the aftermarket roller cams use a thrust button or cam button, in place of the thrust plate.  

Rich9164809 Rich9164809
New User | Posts: 4 | Joined: 09/11
Posted: 09/29/11
05:42 PM

Spoke to the guys at GM Hi Performace today. They said eventhough the block designed to accept a flat tappet camshaft or a roller camshaft the block was not designed to accept a roller camshaft or a flat tappet designed for the bloacks manufactured before 1987. So now I'm looking to purchase a 350 block - 4 bolt main - standard bore - pre 87.  Thanks for the help to all .