biggest cam without machining heads
Originally Posted by Matts94Z28
Im running a 230/244 .544/.576 on a 112 in my car with no problems. I know people run bigger cams than that. It's not always about lift either, you have to consider duration. You can have a cam with alot of duration and not so much lift or vice versa and be alright. It all depends on what you want.
Originally Posted by lt170chevelle
dont they have taller valves or something...i think the ls1 valvetrain geometry is different than lt1s
I have .660" Lift PRC Gold Dual-Coil Springs on mine, Stock Valves.
The Heads I have are 15* Heads, big difference in the Rocker Geometry. The Pushrod length is the Variable in the LSX setup by the way it's designed, you have to make sure that is in the Money..
Originally Posted by SLawson86
off subject but merv, thats a pretty pimp **** sig...
Originally Posted by Revelation Z28
i know they have lower compression by a little so PTV clearance would be a little better than us, but double springs on their stock head, we could do the same.
Originally Posted by speed_demon24
LS1's have less PTV clearance than LT1's. And I tried putting on a set of patriot Xtreme springs but the valve stem seals that came in the kit didn't fit my valve guides, and the fel-pro ones i picked up from the store didn't fit inside the inner spring so I had to send them back. I'm not sure if they sent the wrong seals or what since they said they had people with LT1's running their springs.
Originally Posted by slick1851
WHY DO PEOPLE SUGGEST THE SAME CAMS?????????????//
CC cams,Hot cam,847
Lol
CC cams,Hot cam,847
Lol
That's not a very intelligent response, and you know it. The same off the shelf cams are suggested numerous times for three reasons.
1) There are only so many off-the-shelf cams. If there were an infinite number, maybe on occassion you would see something different.
2) The LT1 is old technology. This goes along with #1. Companies have their LT1 cams, and that's it. Nobody's dumping R&D money into LT1s anymore.
3) They work! Look at the numbers of people running cam-only with the 503 I recommended. They speak for themselves.
You can clearly see where I edited, seconds after I made the post nonetheless, and told the guy to look into a custom grind. Some people don't want one, so I gave him both options.
And yes, vast batches of the 918 beehive have problems with breakage. there are other beehives though if you look around.
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Joined: Nov 2001
Posts: 10,023
Likes: 6
From: LT1 land...the "409" of the 90s!
Originally Posted by speed_demon24
You could have a cam with .200 lift that hits the piston and a cam with 1" of lift that clears the piston fine, so no lift has nothing to do with it. The duration has the biggest impact on PTV clearance.
I have an Engine that will make you think twice. Duration does not even have as much to do with it as lobe placement
Lobe PLACEMENT is the MOST important issue over lift and duration.
ive seen people running the 847 on factory castings...just keep in mind that with a larger cam such as the 847 you will need to rev it higher..i believe most ppl with the 847 are shifting around 6800..correct me if im wrong. so make sure you build your engine so that it can handle the higher rpm's.
James
James
