2.0 Heads Opinions Please, Sodium or SS |
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2.0 Heads Opinions Please, Sodium or SS |
MarkV |
May 19 2005, 04:24 PM
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#21
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Fear the Jack Stands Group: Members Posts: 1,493 Joined: 15-January 03 From: Sunny Tucson, AZ Member No.: 154 Region Association: None |
Len Hoffman has my 2.0 heads. He is repairing cracked plug bosses, converting to 12MM plugs, installing 8 new seats.
I am considering dual springs new chromoly retainers. The heads have new (expensive) sodium exhaust valves. Len doesn't recommend sodium valves with dual springs, he says change the to SS valves. So, should I keep the sodium valves & stock springs or go SS with double springs & new retainers? How much performance do double springs make? The engine is a fairly fresh 2056 with Dellorto 40's and a stockish Webcam. I have the parts to convert back to Djet but will probably drive it with the carbs for a while first. The car is a weekend fun car & not a daily driver. |
Jake Raby |
May 19 2005, 06:34 PM
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#22
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Engine Surgeon Group: Members Posts: 9,394 Joined: 31-August 03 From: Lost Member No.: 1,095 Region Association: South East States |
Let Len supply you with his valves- They come from me..
Sodium filled valves are a HUGE mistake, stainless technology of today far supercedes the sodium of yesteryear.. FWIW- 85% of the cams that *should* be used on the streeet do not need dual springs.. While you have it apart get a cam designed to compliment the heads and since Len is doing them for you- I have that cam absolutely. |
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