GM847 and similar
Originally Posted by thebufenator
Yeah......I have a cc503.....but it will hit peak power way before 6500rpm with the 383......I am thinking getting a 306 or similiar would be better...
Go with something larger or custom.
Originally Posted by thebufenator
is the 847 large enough?
seeing as its a dd I dont want something to bad....is something in the 24x/24x top much for a dd 383 with a 3000 stall and stock heads for now?
seeing as its a dd I dont want something to bad....is something in the 24x/24x top much for a dd 383 with a 3000 stall and stock heads for now?
stock head engine, simply put...GM847 is too big, now thats not to say people dont do it since obviously people do an love it. Yes its going to make more power then a smaller cam'd car but the torque curve on the smaller cam'd car will make up the difference. I think your looking a bit in the wrong direction if you're wanting to stay stock heads, need to look a bit smaller. I went custom grind, i asked for the biggest cam they would recommend for a stock head car and this is from a very well known and experienced company in LT1 cylinder head design and performance, Advanced Induction. If you're planning on something quick and budget in the mean time before something else i would recommend the Hot Cam kit, its a great kit, puts down great numbers for its size, very affordable since its everything needed for the swap, and awesome for a car thats daily driven. But again, the GM847 is just too big
Originally Posted by thebufenator
is the 847 large enough?
seeing as its a dd I dont want something to bad....is something in the 24x/24x top much for a dd 383 with a 3000 stall and stock heads for now?
seeing as its a dd I dont want something to bad....is something in the 24x/24x top much for a dd 383 with a 3000 stall and stock heads for now?
Originally Posted by VIPRETR2
I liked this cam in my LT4
Crane Grind 1093651 some call it the "848"
.595/.595 240/244 110lsa
I almost miss my LTX cars
Crane Grind 1093651 some call it the "848"
.595/.595 240/244 110lsa
I almost miss my LTX cars
Wow, never heard of the "848" AKA crane grind 1093651. Sounds like it would be real nasty. How would the "848" with LE3 heads compare to the LE3 cam LE3 heads
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Originally Posted by 96silverram
Wow, never heard of the "848" AKA crane grind 1093651. Sounds like it would be real nasty. How would the "848" with LE3 heads compare to the LE3 cam LE3 heads
you bad man......you very bad man 
now that was all the higher we reved it to, but im sure it would have made more power the higher we took it. 
Originally Posted by GreenBlood
i can't find that grind from crane, it wasn't even on their website...
Thread Starter
TECH Addict
iTrader: (6)
Joined: Aug 2006
Posts: 2,310
Likes: 0
From: Schiller Park (NW burb of Chicago)
Originally Posted by VIPRETR2
That may not be a current grind, it was a long time ago when I ran that. The info is straight from the cam card.
Originally Posted by GreenBlood
would comp custom grind something like that for me despite getting the numbers from another company?
Originally Posted by zlover129
stock head engine, simply put...GM847 is too big, now thats not to say people dont do it since obviously people do an love it. Yes its going to make more power then a smaller cam'd car but the torque curve on the smaller cam'd car will make up the difference. I think your looking a bit in the wrong direction if you're wanting to stay stock heads, need to look a bit smaller. I went custom grind, i asked for the biggest cam they would recommend for a stock head car and this is from a very well known and experienced company in LT1 cylinder head design and performance, Advanced Induction. If you're planning on something quick and budget in the mean time before something else i would recommend the Hot Cam kit, its a great kit, puts down great numbers for its size, very affordable since its everything needed for the swap, and awesome for a car thats daily driven. But again, the GM847 is just too big
Originally Posted by Jditlfm
So how much power are you making with that custom grind cam? Any track times?
Also that 8.31 at 85 was with 1.52 roller tip rockers and they were adjusted way too tight, one eventually jumped the valve and bent the guide plate all to hell, i went back and put in some 918's, full roller 1.6 rockers and i felt a good power difference from that as well. Unfortunately this is all speculation so eventually i'll get solid numbers to go by
Stock heads will choke the hell out of an 847 or 306. Not to say it wont dyno nice numbers, but it wont e/t faster then a 503 or "baby" custom grind. The curve of the smaller cam with the right combo more then makes up for it at that track.
That isnt even considering the fact that you do not want to spin a stock block up to where those cams want to be.
That isnt even considering the fact that you do not want to spin a stock block up to where those cams want to be.