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Which Valves do I choose

1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Which Valves do I choose

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Old

Dec 14, 2009 | 06:21 AM

#1

Uncle Grumpy

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Which Valves do I choose

Hi,

I've got a '91 5.8l efi motor and I am going to get a set of new heads. I am confused if i should get the 1.90 valves or the 2.02 valves. The cam being used is the speed density Comp Cam and the bottom end is standard.

What should I do?

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Old

Dec 14, 2009 | 07:56 AM

#2

Conanski

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Joined: Jun 2006

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From: Ottawa, Ontario

You probably want to stay with 1.90" intake valves to be safe, they will fit into the dish area on top of the piston so there is some extra clearance but 2.02" valves will not.

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Old

Dec 14, 2009 | 09:25 PM

#3

Uncle Grumpy

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Quote:

Originally Posted by Conanski

You probably want to stay with 1.90" intake valves to be safe, they will fit into the dish area on top of the piston so there is some extra clearance but 2.02" valves will not.

Thanks I will.

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Old

Dec 14, 2009 | 09:36 PM

#4

twister2gt

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Joined: Feb 2009

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Do the pistons in our trucks not have valve reliefs?

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190, 202, ford, valves, vs

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