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#21
12-04-2009, 04:23 PM
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Of course, my biggest problem to date is the front spring saga....Shooting for a 1.50" drop has proven to be most difficult....Robert
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#22
12-08-2009, 04:32 PM
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Looking for valve spring suggestions for a stock diameter dual spring for an unmachined 6X head, with a 1.750" installed height. Application is a roller hydraulic with .550"/.550" net valve lift on both intake and exhaust.
Thanks...Robert |
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#23
12-09-2009, 03:21 PM
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Hydraulic Roller for the 413:
I put the finishing touches on my custom UD hydraulic roller for the 413 this morning. Thought you cam guys might enjoy checking out the specs:
.536"/.536" - 284°/292° @ .006 - 230°/238° @ .050" - 152°/158° @ .200" - 111.5° LSA Installed with a 109.5° intake centerline, the valve events @ .006" are as follows: IO: 33° BTDC IC: 72° ABDC EO: 80° BBDC EC: 33° ATDC Hope Screamingchief doesn't see this camshaft blasphemy...:-) |
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#24
12-10-2009, 01:41 PM
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Looking for a valve spring that will install at 1.750" to 1.700" with 120-130lbs on the seat and 325-350lbs open pressure at .530"-.550" net valve lift. Any suggestions?????.....Robert
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#25
12-10-2009, 06:04 PM
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Go to Crower's online catalogue. You can pick your diameter, installed height, rate, everything. It's what I did. I'd have to look up the p/n, but mine spec at about 150# seat and 425# OTN installed at 1.73".
Stewart
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1976 TA, nose converted to 1970 style, 406, ported #13 Heads, '70 iron intake without crossovers, Q-Jet - Cliff style, RARE OS manifolds, Pypes duals w/crossflow, UD 230/238 custom HR 4/7 swap cam with solid roller lifters  , Hydro-Boost 4-wheel discs, 4 Speed, 3.23 posi.“Nothing in life is so exhilarating as to be shot at without result.” - Winston Churchill |
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#26
12-10-2009, 06:09 PM
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What's your lift????
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#27
12-10-2009, 07:01 PM
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Quote:
 . '75 Formulas are among my favorite years. I still rememeber seeing the Buccaneer Red Formula next to the Silver TA in the '75 catalog. A yellow one would be cool too.I have a good friend in Elk Grove, Ca not far from you with a very nice Red '74 Formula. Steve Hosting- Thur-Sun April 8-11, 2010 12th annual Pontiac Heaven Phoenix www.pontiacheaven.org Sunday April 11, 2010 8th annual Nostalgic Show & Go! Phoenix www.nostalgicshowandgo.org
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Hundreds of Pontiacs in Az "Real Pontiacs only..no corporate nonsense!" Facebook- Pontiac Heaven Hosting- 23rd annual Pontiac Heaven weekend- Phoenix pending due to covid Pontiac Heaven Museum in process Phil 2:11 |
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#28
12-10-2009, 07:25 PM
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It's +100°F here in the summer too...
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#29
12-10-2009, 08:30 PM
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Quote:
Stewart
__________________
1976 TA, nose converted to 1970 style, 406, ported #13 Heads, '70 iron intake without crossovers, Q-Jet - Cliff style, RARE OS manifolds, Pypes duals w/crossflow, UD 230/238 custom HR 4/7 swap cam with solid roller lifters , Hydro-Boost 4-wheel discs, 4 Speed, 3.23 posi.“Nothing in life is so exhilarating as to be shot at without result.” - Winston Churchill |
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#30
12-10-2009, 08:35 PM
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Ha!
That's the solid version of my UD HR..... |
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#31
12-10-2009, 11:07 PM
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Quote:
 Stewart
__________________
1976 TA, nose converted to 1970 style, 406, ported #13 Heads, '70 iron intake without crossovers, Q-Jet - Cliff style, RARE OS manifolds, Pypes duals w/crossflow, UD 230/238 custom HR 4/7 swap cam with solid roller lifters , Hydro-Boost 4-wheel discs, 4 Speed, 3.23 posi.“Nothing in life is so exhilarating as to be shot at without result.” - Winston Churchill |
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