Won't be long now...
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,137
Likes: 5
From: Howard PA
Won't be long now...
Hot Cam
Crane 99846 springs (minus dampers, they would have cut through the locators)
Guides cut down for more lift and seal.
Heads, gasket matched 12367777 gasket, ported, 5 angle valve job (debateable I guess)
Intake gasket matched also.
I don't think it's too bad for the first time I've tried port gasket matching and porting, I missed a few little places, but I think it's good enough.
I'll post more pictures as I go along, I just love posting pictures, and everyone loves pics on this forum, right?
Crane 99846 springs (minus dampers, they would have cut through the locators)
Guides cut down for more lift and seal.
Heads, gasket matched 12367777 gasket, ported, 5 angle valve job (debateable I guess)
Intake gasket matched also.
I don't think it's too bad for the first time I've tried port gasket matching and porting, I missed a few little places, but I think it's good enough.
I'll post more pictures as I go along, I just love posting pictures, and everyone loves pics on this forum, right?
Last edited by ALLT4; Jul 22, 2006 at 03:17 PM.
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,137
Likes: 5
From: Howard PA
Originally Posted by STL94LT1
Looks like things are going together really well. 
I bought the 99846 springs hoping that the damper might somehow work. Well it won't fit around the seal or in the stock locator. So out came the dampers making it essentially the 99845 spring. I only lose 19 or so lbs of rate and none at seat pressure because I installed them at 1.775
So if you're looking for a real good stock replacement spring for your LT1/4 the 99845 will drop right in at stock height and allow higher lift (up to .615 @ 1.775 .640 @ 1.800) cams without worry. They're cheap too at $140.00, set of 16.
They actually fit better in the retainers and locators than the stock spring do.
Large Impressive Member
Joined: Jul 2003
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by Hot Rod 90
good for you!
its always great too see someone adding some power -- and actually doing it, instead of just squawking about it or dreaming about it
its always great too see someone adding some power -- and actually doing it, instead of just squawking about it or dreaming about it
Those sound like they'll work nice. And from the pics and what you said you've done, you should feel a real nice increase, especially after tuning. 
Many of us are also very pleased with the CC 915 & 918 beehive springs. They fit nicely on the stock LTx spring cups and there are no problems with seal clearance, at least at the Hotcam's lift. I'd be interested to know how much lift folks have used them with in an LTx. I never researched that past what my needs were. Mine have served me well for nearly 20K miles now. I'll look forward to hearing about how you like, and the results of, your upgrades.
Race Director
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Originally Posted by Corvette Kid
Many of us are also very pleased with the CC 915 & 918 beehive springs. They fit nicely on the stock LTx spring cups and there are no problems with seal clearance, at least at the Hotcam's lift. I'd be interested to know how much lift folks have used them with in an LTx.
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Race Director
Joined: Jan 2002
Posts: 12,261
Likes: 85
From: O'Fallon Missouri
Originally Posted by ALLT4
Id like to publicly thank STL94LT1 for his suggestion in another thread about those springs. I labored over spring selection for at least a week, (ask 500hp, he helped a lot also) and after all that it came back to STL94LT1's suggested spring. It's just hard to beat. I originally was going to go with the 96802 spring as a stock LT4 replacement with more lift capeability but looking at the H-11 springs it didn't make sense to settle for a stock replacement.
I got a heads up on the H-11 springs from friend and forum member Jim "96GS#007" Mason. Jim has ran his GS many hard road course sessions with those springs, without a failure.
Large Impressive Member
Joined: Jul 2003
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by STL94LT1
I'm running 605/622 lift, with my 918's.
Originally Posted by STL94LT1
Hey thanks, that's what this forum is all about.
I too have benefitted from good info you've provided in the past.
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,137
Likes: 5
From: Howard PA
I'll be happy and sad when this all done. I'm having so much fun putting all the super clean clean parts back on. When I run out of new stuff the fun is all over. Buuuut...then another kind of fun can begin, the rush of new found power!
Yeah, dyno tuning is in the works. Me and buddy are trying to get several cars lined up for a dyno day at local shop. That's why I didn't have a mail order tune done.
I'm wondering if this will run good enough to drive it a while before that can happen though. Anyone know? Alvin?? Anybody??
Yeah, dyno tuning is in the works. Me and buddy are trying to get several cars lined up for a dyno day at local shop. That's why I didn't have a mail order tune done.
I'm wondering if this will run good enough to drive it a while before that can happen though. Anyone know? Alvin?? Anybody??
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,137
Likes: 5
From: Howard PA
Originally Posted by Corvette Kid
Many of us are also very pleased with the CC 915 & 918 beehive springs.
Large Impressive Member
Joined: Jul 2003
Posts: 65,811
Likes: 71
From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by ALLT4
I'll be happy and sad when this all done. I'm having so much fun putting all the super clean clean parts back on. When I run out of new stuff the fun is all over. Buuuut...then another kind of fun can begin, the rush of new found power!
Yeah, dyno tuning is in the works. Me and buddy are trying to get several cars lined up for a dyno day at local shop. That's why I didn't have a mail order tune done.
I'm wondering if this will run good enough to drive it a while before that can happen though. Anyone know? Alvin?? Anybody??
Yeah, dyno tuning is in the works. Me and buddy are trying to get several cars lined up for a dyno day at local shop. That's why I didn't have a mail order tune done.
I'm wondering if this will run good enough to drive it a while before that can happen though. Anyone know? Alvin?? Anybody??
Large Impressive Member
Joined: Jul 2003
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From: Good health is merely the slowest possible rate at which one can die
St. Jude Donor '04-'05-'06-'07
Originally Posted by ALLT4
From what I see the beehive comp cams have a higher seat pressure but no where near the rate of the 99845 or 99846 cranes. How is that possible?
Race Director
Joined: Jan 2002
Posts: 12,261
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From: O'Fallon Missouri
Originally Posted by Corvette Kid
I knew I'd seen some pretty serious lift numbers with them but couldn't remember any specifics. Are you running around the ideal 1.8" installed height?
Also, my valve stems are .050 longer than stock, maybe that's why I can run a stock length pushrod.
Melting Slicks
Joined: Nov 2003
Posts: 2,679
Likes: 1
From: South Amboy NJ
Originally Posted by Corvette Kid
Since Alvin's in Charlotte now (about an hour from me) I'm going to talk to him about tweaking it, now that I've installed a 388 bottom end. I've always been very impressed with his posts.
Melting Slicks
Joined: May 2002
Posts: 2,670
Likes: 4
From: Severna Park MD
Originally Posted by ALLT4
I'm wondering if this will run good enough to drive it a while before that can happen though. Anyone know? Alvin?? Anybody??
It makes a difference on what year your car is. Mine is a 94 with the PCM and MAF. That's different from 92-93 in critical ways.
Last edited by FELNGR8; Jul 22, 2006 at 10:48 PM.
Thread Starter
Melting Slicks
Joined: Dec 2004
Posts: 2,137
Likes: 5
From: Howard PA
Not bad for a days work, installed heads and all that goes with that. Intake on, WP on, acessories bracket, most of the wiring is done, started routing the plug wires and that's where I quit.
