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-   -   Old Cam Specs (https://forums.maxperformanceinc.com/forums/showthread.php?t=871805)

pggto 02-06-2024 09:32 AM

Old Cam Specs
 
2 Attachment(s)
I pulled the cam out of my 71 455 HO engine that was rebuilt in 1980. There is a number on the cam. Does anyone recognize the cam number? The number is 130. I found a cam sheet from an older post that has a TP130 listed. Is this the same cam? Thanks

steve25 02-06-2024 10:00 AM

Yup, sounds like a TRW replacement cam.
These where vey popular back then.

I can double check on my catalog later in the afternoon and post back.

Stan Weiss 02-06-2024 10:03 AM

I have no idea if that cam is the cam in those specs. If you have a dial indicator and a degree wheel you need to put the cam back in the block and get some information from it. Like what is peak lobe lift.

If that is the cam that was in the engine, how did it run? Some will tell you that the 108 LSA and 103 ICL will not work. I am not one of them I like those numbers.

Stan

pggto 02-06-2024 11:05 AM

The car has been parked since the early 80's. I had it running before I pulled the engine. But I didn't drive the car. I was told it was parked because he had to run race gas in it. It also has some large domed pistons in it as well. I was asking about those in another post. Thanks


Quote:

Originally Posted by Stan Weiss (Post 6483627)
I have no idea if that cam is the cam in those specs. If you have a dial indicator and a degree wheel you need to put the cam back in the block and get some information from it. Like what is peak lobe lift.

If that is the cam that was in the engine, how did it run? Some will tell you that the 108 LSA and 103 ICL will not work. I am not one of them I like those numbers.

Stan


pggto 02-06-2024 11:05 AM

Thanks


Quote:

Originally Posted by steve25 (Post 6483625)
Yup, sounds like a TRW replacement cam.
These where vey popular back then.

I can double check on my catalog later in the afternoon and post back.


Stan Weiss 02-06-2024 11:17 AM

It is a little late now, but it would have been interesting to see what numbers a cranking compression test would have shown.

Stan

steve25 02-06-2024 03:04 PM

My 1986 TRW catalog no longer list the Tp130 cam.

My guess for such is its 78 degrees of overlap that it has.

The 86 catalog list 4 cams for Pontiacs. 2 of which are in there new EP ( efficiency performance) line of cams, but none of them have over 72 degrees of overlap.

unruhjonny 02-06-2024 03:29 PM

that last post sent me to google - because I like a challenge!

Guess what!?

It sent me back here!!

THIS thread has the following post:


Quote:

Originally Posted by Geoff (Post 3423979)
Could it be TP130? [ Pontiac cam ]. My 1977 TRW catalogue stops at TP167.

TP130: 284/284 deg adv; 8.75/34.75 deg int; 44.75/1.25deg exh; 68 deg overlap; 0.291" lobe lift int & exh.

There is also THIS thread:

Quote:

Originally Posted by buwalda (Post 1878820)
My TRW catalog is pretty old. I don't know if the specs have changed.

TP130:
Lift: Valve lift 0.436"/0.436"
Adv duration: 284/284 degrees
Overlap: 68 degrees


steve25 02-06-2024 03:55 PM

1 Attachment(s)
It’s interesting that with what the OP has posted, other then the TP130 that’s missing, all of those cams are either Ford, Chevy or Chrysler.

70GS455 02-07-2024 05:59 PM

From the table, it's 224/226 deg at .050"

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