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243 Valve/Seat Sizing Question

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Old Dec 29, 2012 | 11:27 AM
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Question 243 Valve/Seat Sizing Question

I have a couple of questions I tried to search out the answer to but didnt find. I am going to swap out some valves in my 243's and I know I am going to use the 2.02 Intake Sizing and I know that will work with the factory seat, But then I was going to use the 1.6'' Exhaust....and I cant find info to say whether the factory seat will accomodate this or not. I was simply planning on SS Valves, but I will consider other oprtions, price dependant.

Also, What are my valve options for these two sizes. I saw Rev Stainless offered at LPE for a fair price of $100 a set of each, but what else is out there? (links would be nice and appreciated, Thx)
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Old Dec 29, 2012 | 02:12 PM
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1.6" will work on the stock seats. REV's are nice, as are Ferrea and Manley. I think Ferrea even offers a hollow stem that weigh in at about 108g if I remember correctly.
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Old Dec 29, 2012 | 04:33 PM
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Yeah I wanted a hollow stem but couldn't find them sold anywhere.
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Old Dec 29, 2012 | 05:59 PM
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I got a set of hollow 2.165" LS3 intake valves and solid 1.59" exhaust valves for less than $200 shipped from Erik @ HKE. If you got those, you can turn then down to 2.02" and have a nice ~80g intake valve.

I'll probably be doing similar with mine, but 2.08" diameter and a steeper seat.
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Old Dec 29, 2012 | 06:30 PM
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That sounds like too much work....Id rather just buy the proper sized valve for the application. I know I dont want to change the seats, because at that oint it would be cheaper to just buy a set of heads done after the labor.
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