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  #61 (permalink)  
Old 12-02-2013, 09:27 AM
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Hi guys!!
I'm so sorry to disturb you but I really need Help!!!!!!
As you can read on this thread I've bought an Compcams X4258HR camshaft.
This Cam can't be installed with OEM chevy vortec timing set but it need to use it because the holes are different. The timing set is a compcams #3136 and is a double roller.
OEM vortec timing is single roller and the OEM plastic timing cover have the crankshaft position sensor located in and the reluctor on the crank.
How I can use the OEM timing sensor, reluctor and cover??
I've talk with Summitracing and they says that I need to change Camshaft, timing, lifters because I can't build an engine using two different type of engines!! I don't know if they are in right or wrong!!!
As I need to use the stock PCM and Sensors I need too understand if there are ready solutions as kits or I must work on the stock parts to adapt the duoble roller timing and relocate sensor and reluctor.
Have you any Ideas????????
Thanx
Lorenzo

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  #62 (permalink)  
Old 12-04-2013, 08:53 AM
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I've decided to install the double roller timing set #3136 by compcams and make a modification to the reluctor wheel and timing cover!
I will use that timing set because it fit on the compcams X4258HR camshaft holes and is 4 retard/advance.
I know that double roller timing is not needed but is the only one with 4 regulations that fit the cam!
Someone have do the same work on those parts??
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Old 12-06-2013, 10:05 AM
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Give these guys a call. They may have the timing cover you need. I wouldn't mess with trying to alter what you have.

EFI Connection, LLC - EFI Connection 24x SBC Systems
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Old 12-06-2013, 12:15 PM
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TPIS makes the billet timing covers for EFIConnection.

TPiS, Inc.

There are guys that have run a double roller under the stock plastioc timing cover, you have to use a spacer inside.
The good thing about the billet cover is that you can use a cam button with confidence.

peace
Hog
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Old 12-06-2013, 02:26 PM
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Thanks a lot guys!!
I will look at yours suggestions!!
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Old 01-26-2014, 01:09 PM
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Thread jack, hey Hogg I'm building a 350 Vortec on the cheap for my drift car with a t56 conversion... I assume p&p the lower intake and heads, headers back exhaust, custom tune, gears, under drive pulleys, ill also be running an electric water pump. In regards to cam and valve train configuation...what set up will have a broad power band, and also take a beating. I've done a little research in intakes n only find carbed applications and the proflowxt n mercruiser ones n honestly they are just too expensive lol. Will a p&p stock Vortec intake perform? Also suggestions on ignition systems? Are there larger throttle bodies available for the Vortec upper intake? At what point will I need to Install larger injectors? Thx in advance!
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