help me make a cam choice!
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Instructor
Joined: May 2013
Posts: 177
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From: Fairland Oklahoma
help me make a cam choice!
I originally wasn't going to do a cam swap but I can't help but feel like I need a reward while I'm replacing my head gasket 
I'm thinking 222/224 112 lsa but I wanted your opinions on whether this would be a good torquer cam. I'd like to get some good low to mid range but I'm sticking with stock heads and exhaust for now. I will be going aftermarket later though so can I get my cam based on my future heads/exhaust and still get good performance until then?
I'm thinking 222/224 112 lsa but I wanted your opinions on whether this would be a good torquer cam. I'd like to get some good low to mid range but I'm sticking with stock heads and exhaust for now. I will be going aftermarket later though so can I get my cam based on my future heads/exhaust and still get good performance until then?
Drifting
Joined: May 2013
Posts: 1,736
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From: Reno Nevada
This would work much better with stock components, and not require custom programming.
http://www.summitracing.com/parts/CCA-08-501-8/
http://www.summitracing.com/parts/CCA-08-501-8/
Thread Starter
Instructor
Joined: May 2013
Posts: 177
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From: Fairland Oklahoma
This would work much better with stock components, and not require custom programming.
http://www.summitracing.com/parts/CCA-08-501-8/
http://www.summitracing.com/parts/CCA-08-501-8/
Thread Starter
Instructor
Joined: May 2013
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From: Fairland Oklahoma
Race Director
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From: Overland Park Kansas
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Thread Starter
Instructor
Joined: May 2013
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From: Fairland Oklahoma
You're completely right! It's a 383 stroker with stock intake and exhaust except for a main cat delete. Cam is also stock. Throttle body coolant bypass and removed the "power robbing" disk up front is basically the only mods. All of this is on a '90 L98 and I don't have to pass emissions here in Oklahoma so no worries about that.
Instructor
Joined: Apr 2010
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From: MD
Lightly ported and smoothed stock gm tpi and runners, 1.6 roller rockers, 74211 cam, eddy heads lightly ported, 10.7:1, long tube tpis headers, no cat, Magnaflows, 355. Pulls stronger everywhere than it did stock. First gear is done real quick and it pulls you back in the seat strong at 90mph in 3rd.
Team Owner
Joined: Dec 2000
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From: Phila., PA burbs
You're completely right! It's a 383 stroker with stock intake and exhaust except for a main cat delete. Cam is also stock. Throttle body coolant bypass and removed the "power robbing" disk up front is basically the only mods. All of this is on a '90 L98 and I don't have to pass emissions here in Oklahoma so no worries about that.
Melting Slicks
Joined: Jun 2013
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Intermediate
Joined: Apr 2014
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From: Phoenix AZ
To be more specific... You measured the bore or the stroke to determine it was a 383?
From my limited knowledge a 383 is created by changing the crank, rods and usually pistons to allow a longer stroke. Bore measurement would stay the same unless they bored it to clean up the walls. This is why you where asked to see if they notched the block for the different rods geometery.
From my limited knowledge a 383 is created by changing the crank, rods and usually pistons to allow a longer stroke. Bore measurement would stay the same unless they bored it to clean up the walls. This is why you where asked to see if they notched the block for the different rods geometery.
Thread Starter
Instructor
Joined: May 2013
Posts: 177
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From: Fairland Oklahoma
To be more specific... You measured the bore or the stroke to determine it was a 383?
From my limited knowledge a 383 is created by changing the crank, rods and usually pistons to allow a longer stroke. Bore measurement would stay the same unless they bored it to clean up the walls. This is why you where asked to see if they notched the block for the different rods geometery.
From my limited knowledge a 383 is created by changing the crank, rods and usually pistons to allow a longer stroke. Bore measurement would stay the same unless they bored it to clean up the walls. This is why you where asked to see if they notched the block for the different rods geometery.
Melting Slicks
Joined: Jun 2013
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Thread Starter
Instructor
Joined: May 2013
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From: Fairland Oklahoma
The previous owner wasn't the builder and after I had bought it I talked to the builder and he had no reason to lie to me. The builder had the cam ready to go in but decided to sell it and put the stock intake and heads and kept the cam for his other vette. Later he offered to sell the cam to me. Many other people have confirmed that it's a 383 (it's a well known vette that the chief of police owned in our small community) without me even mentioning it.
I really appreciate the concern you all and I understand it but I'm confident that the builder didn't lie to me.
I really appreciate the concern you all and I understand it but I'm confident that the builder didn't lie to me.
Race Director
Joined: Nov 2003
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From: Overland Park Kansas
2020 Corvette of the Year Finalist (appearance mods)
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If it's got the stock heads, a simple compression test would weed out the 383 vs 350 issue. 383 pumps the compression significantly higher, don't ya know!
As for a cam with stock intake/exhaust, duration and steep ramps are gonna help get some air in/out....especially on the intake side! I'd probably suggest a LPE SR cam (74219). Ya might get away with 1.5 rockets w/o head work. 1.6 for sure would require machining the heads. Still would be a good choice if you upgrade the intake/exhaust later.
As for a cam with stock intake/exhaust, duration and steep ramps are gonna help get some air in/out....especially on the intake side! I'd probably suggest a LPE SR cam (74219). Ya might get away with 1.5 rockets w/o head work. 1.6 for sure would require machining the heads. Still would be a good choice if you upgrade the intake/exhaust later.
Last edited by GREGGPENN; Jul 8, 2014 at 06:37 PM. Reason: Corrected first sentence for clarity.
Thread Starter
Instructor
Joined: May 2013
Posts: 177
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From: Fairland Oklahoma
If it's got the stock heads, a simple compression test would week this one out. 383 pumps the compression a bit higher, don't ya know!
As for a cam with stock intake/exhaust, duration and steep ramps are gonna help get some air in/out....especially on the intake side! I'd probably suggest a LPE SR cam (74219). Ya might get away with 1.5 rockets w/o head work. 1.6 for sure would require machining the heads. Still would be a good choice if you upgrade the intake/exhaust later.
As for a cam with stock intake/exhaust, duration and steep ramps are gonna help get some air in/out....especially on the intake side! I'd probably suggest a LPE SR cam (74219). Ya might get away with 1.5 rockets w/o head work. 1.6 for sure would require machining the heads. Still would be a good choice if you upgrade the intake/exhaust later.