Posted By: ProSport
Are all big block intermediate shafts the same length? - 03/31/10 06:09 PM
Are all big block intermediate oil pump shafts the same length? I need a new bronze unit for a roller cam and I know when we first got this motor ready to fire last winter I had one that was too long but can't remember why??
I have a 400 low deck block, Melling oil pump with an Indy cover on it. Single line external oiling.
Posted By: maximum entropy
Re: Are all big block intermediate shafts the same length? - 03/31/10 06:14 PM
nope. there are three that i know of- maybe four, depending on if it's low deck, rb, milodon pump, etc.
Posted By: rebel
Re: Are all big block intermediate shafts the same length? - 03/31/10 06:15 PM
the longer unit is for the race unit that feeds the pump from both ends. it has like an extra plate sandwiched between the pump & the block.
Posted By: Steve1118
Re: Are all big block intermediate shafts the same length? - 03/31/10 07:10 PM
The stockers are the same length. There is some different lengths for the hex part due to the depth of some of the racing pumps, but if you are using a stock type pump use any of the big block shafts...unless you have a roller cam.
In your case, you will need the bronze gear for the roller, and you will need the extended hex drive for the deeper pump.
Posted By: SG duster
Re: Are all big block intermediate shafts the same length? - 03/31/10 08:14 PM
there is also an extra long one for the Keith Black double pumps.
Posted By: cudadon
Re: Are all big block intermediate shafts the same length? - 04/01/10 01:24 AM
The Barton billet alum. pump is longer also.
Posted By: ProSport
Re: Are all big block intermediate shafts the same length? - 04/01/10 01:27 AM
Thanks guys, I just took mine out tonite to measure it, should have just done that in the first place. Funny thing is I didn't even measure it as I expected it to be worn badly and in need of replacement but it is fine.
Posted By: jamesc
Re: Are all big block intermediate shafts the same length? - 04/01/10 01:31 AM
if you're not using anything between the melling pump and block you need a stock length shaft which is the shortest one. iirc of the three "common" lengths the stock pump uses the shortest, the milodon external feed pump uses the next longest and using a stock type pump with the milodon external feed spacer uses the longest one.
Posted By: AndyF
Re: Are all big block intermediate shafts the same length? - 04/01/10 05:05 AM
Three different lengths, all available in either bronze or steel. Total of 6 different part numbers. This info is in my book.
