TFS 215 Pushrods
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Melting Slicks
Joined: Oct 2007
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From: Cedarburg, WI
TFS 215 Pushrods
Just thought I would see if anyone has run larger pushrods with TFS 215's. Wondering if anyone is running 3/8"? I plan on putting the heads on today and measuring for length. Will order some from Manton on Monday. Thanks! 
Burning Brakes
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From: Kopavogur in Iceland
yes have 12 piecies, but i´m here in iceland
so it is long way to pick them up....
Race Director
Joined: Sep 2005
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From: Pasco WA
As far as length goes, I believe the recommended size is 7.5" on the second generation TF. Mine are 7.9" and I was required to use full roller rockers. PRs were included in my package, and IIRC, they were 3/8".
Thread Starter
Melting Slicks
Joined: Oct 2007
Posts: 2,464
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From: Cedarburg, WI
Cam was on base circle and used comp cam checker at zero lash:
Intake 7.358 with 0.040 lifter preload
Exhaust 7.365 with 0.040 lifter preload
Need to decide on length & preload and verify I can run 3/8" pushrods.
Help - Vettenuts!!!
Team Owner
Joined: Mar 1999
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From: At the beach in little Rhody
Not sure on your question but for information the Morels are taller than stock GM and therefore the pushrod length over those normally used will be shorter. Also, the reduced preload will shorten them as well. In the end, rough numbers, the use of Morels will shorten pushrod length by approximately 0.100". Using that apporximation, you can see that GM lifters would have put you near Zeevette's recommended length.
Can't answer the question on the 3/8" pushrod, but he also can make an 11/32" diameter is you are concerned with the 3/8". He will also sell you one so you can check it prior to ordering a set.
Can't answer the question on the 3/8" pushrod, but he also can make an 11/32" diameter is you are concerned with the 3/8". He will also sell you one so you can check it prior to ordering a set.
Thread Starter
Melting Slicks
Joined: Oct 2007
Posts: 2,464
Likes: 2
From: Cedarburg, WI
Not sure on your question but for information the Morels are taller than stock GM and therefore the pushrod length over those normally used will be shorter. Also, the reduced preload will shorten them as well. In the end, rough numbers, the use of Morels will shorten pushrod length by approximately 0.100". Using that apporximation, you can see that GM lifters would have put you near Zeevette's recommended length.
Can't answer the question on the 3/8" pushrod, but he also can make an 11/32" diameter is you are concerned with the 3/8". He will also sell you one so you can check it prior to ordering a set.
Can't answer the question on the 3/8" pushrod, but he also can make an 11/32" diameter is you are concerned with the 3/8". He will also sell you one so you can check it prior to ordering a set.
Race Director
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St. Jude Donor '03
I'm 99% sure he will be able to fit 3/8"...just by comparing the hole size between the heads, the TFS are drilled considerably larger than his stock 243s.
That would be the only limiting factor correct?
(I think he is awaiting a definitive answer from TEA too).
That would be the only limiting factor correct?
(I think he is awaiting a definitive answer from TEA too).
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Team Owner
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From: At the beach in little Rhody
7.4's look like they will work in length unless you want to him them dead nuts, then you need custom length and if you do, Terry Manton works off of Overall Length, not gauge length.
Thread Starter
Melting Slicks
Joined: Oct 2007
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From: Cedarburg, WI
If I had 7.4's wouldn't I have like 0.80 preload on my Morels? So how do I convert my gauge length to overall length?
Team Owner
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From: At the beach in little Rhody
Thread Starter
Melting Slicks
Joined: Oct 2007
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From: Cedarburg, WI
Thread Starter
Melting Slicks
Joined: Oct 2007
Posts: 2,464
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From: Cedarburg, WI
Here is a picture of my TEA TFS 215's. From what I understand they started machining them for larger pushrods within the last 6 months or so.
Here is a picture of the underside:
Here is a picture of the underside:
Team Owner
Joined: Mar 1999
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From: At the beach in little Rhody
I am thinking seriously of doing a pushrod swap to the 11/32" OD pushrods. If I do, I am going to call Trend and order one pushrod in my current length so I can measure it accurately or I just may send it to Manton and tell them what I need so they can measure it.
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St. Jude Donor '03
Thread Starter
Melting Slicks
Joined: Oct 2007
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From: Cedarburg, WI
Race Director
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St. Jude Donor '03
If I change pushrods, the rockers are definitely going on...I'd just really like to know if I could fit a 3/8", and having access to one and trying it would be the quickest way to find out for sure.
Let me know what you end up buying from Manton.
Thread Starter
Melting Slicks
Joined: Oct 2007
Posts: 2,464
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From: Cedarburg, WI
The rockers will likely change what I need for pushrod length, but I s'posse it would be a good time to mock one up and check for proper length too.
If I change pushrods, the rockers are definitely going on...I'd just really like to know if I could fit a 3/8", and having access to one and trying it would be the quickest way to find out for sure.
Let me know what you end up buying from Manton.
If I change pushrods, the rockers are definitely going on...I'd just really like to know if I could fit a 3/8", and having access to one and trying it would be the quickest way to find out for sure.
Let me know what you end up buying from Manton.
Hopefully they are ordered tomorow am!!