Summit K1104 cam too much for 882 heads?
04-04-2012, 09:16 PM
#1
Summit K1104 cam too much for 882 heads?
Is the Summit K1104 cam too much for 882 heads?
K1104
Basic Operating RPM Range: 2,000-5,600
Duration at 050 inch Lift: 224 int./224 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.465 int./0.465 exh.
Camshaft Manufacturers Description Fair idle, midrange power, excellent overall power in 350 c.i.d. engines. Requires 2,000-2,400 stall and gearing.
K1103
Basic Operating RPM Range: 1,600-5,200
Duration at 050 inch Lift: 214 int./224 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.442 int./0.465 exh
Fair idle, low midrange torque/horsepower, works well in 327 and higher c.i.d. engines. Largest camshaft with stock converter.Thanks
K1104
Basic Operating RPM Range: 2,000-5,600
Duration at 050 inch Lift: 224 int./224 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.465 int./0.465 exh.
Camshaft Manufacturers Description Fair idle, midrange power, excellent overall power in 350 c.i.d. engines. Requires 2,000-2,400 stall and gearing.
K1103
Basic Operating RPM Range: 1,600-5,200
Duration at 050 inch Lift: 214 int./224 exh.
Valve Lift with Factory Rocker Arm Ratio: 0.442 int./0.465 exh
Fair idle, low midrange torque/horsepower, works well in 327 and higher c.i.d. engines. Largest camshaft with stock converter.Thanks
Last edited by waid1017; 04-04-2012 at 09:20 PM.
04-04-2012, 10:07 PM
#2
The motor is all stock with TH350 2.56 gears.
If I get a Performer intake for Q-Jet, 3.73 gears with posi, and a 2500 stall converter, would that make it work better?
My 77 is just a hobby car not a daily driver.
Thanks
If I get a Performer intake for Q-Jet, 3.73 gears with posi, and a 2500 stall converter, would that make it work better?
My 77 is just a hobby car not a daily driver.
Thanks
04-04-2012, 10:52 PM
#3
Race Director
Yes, Yes and no. Add a performance distributor recurve, headers, dual exhaust. Also, even with the upgrades, which I would recommend, if it is an L48 car go with the 1103. The other one is to big for your compression.
04-05-2012, 09:23 AM
#6
Well, I just bought a 1963 Nova so I have very little left to spend on my 77 motor which is still completely stock. I was going to upgrade it with the Vortec.
It looks like the K1104 has lobe separation of 114 and the K1103 is 112.
I assume the K1103 will "sound" better. Correct?
I will be putting long tube headers too.
Thanks
It looks like the K1104 has lobe separation of 114 and the K1103 is 112.
I assume the K1103 will "sound" better. Correct?
I will be putting long tube headers too.
Thanks
04-05-2012, 10:05 AM
#7
Race Director
Your 8.2 to 1 compression ratio needs a smaller cam to maintain cylinder pressure. The lope you hear with a big cam is due to overlap which is the duration that both intake and exhaust valves are open. Overlap bleeds off compression. The bigger the overlap or "lope" the more static compression required to maintain good cylinder pressures. Higher cylinder pressure = more power. The 1103 is a good match for your stock motor. headers and intake are a must and 3.70 gears will really wake it up.
04-05-2012, 11:30 AM
#10
Drifting
Overlap occurs at the end of the exhaust stroke and the beginning of the intake stroke.
There is no compression occurring at that point to bleed off.
04-05-2012, 11:46 AM
#11
Race Director
Correct. A late intake valve closing point is the issue with long duration cams & low static compression.
Still, the conclusion stands: Low static compression + long duration cam = crap.
Still, the conclusion stands: Low static compression + long duration cam = crap.
04-05-2012, 12:17 PM
#12
Race Director
I stand corrected. Longer duration results in a later intake closing point which does reduce cylinder pressures in a low static compression engine reducing power. More overlap is just a result of a longer duration cam, tighter lsa or bigger increse on the exhaust duration.I would go with the 3.70
04-05-2012, 01:48 PM
#14
I just want to say I really appreciate all of your feedback.
The Lunati 10001K ($100) is identical to Summit K1103 ($100) & Elgin E922K. The Elgin E922K comes with new spring kit $147. I am sure the same company made the same cams. Sounds better if you say I have Lunati Cam! Never heard of Elgin.
Everything I read and according my service manual, my motor does actually have 8.5:1 compression ratio. Will know for sure when I take the heads off. The compression did drop to 8.2, but it was in 1979. Even if it actually has 8.2:1, I am planning to use the GM Performance 10105117 Head Gaskets (.028”) which should raise it a little to 8.2:1 to 8.35:1. If I use the shim head gasket (0.015”), the compression would go from 8.2:1 to 8.56:1. Since my car/motor still has only 37,000 miles on it, it should be in good shape and I might just considering using the 0.015” head gasket.
http://www.novaresource.org/engine.htm
Here is my extreme budget combo:
Lunati 10001K cam/lifters $100
Summit Spring set 174001 $65
G2699 (1,700-2,100 Stall) for $90
Edelbrock Performer Intake 2101 $130
Summit Racing Headers G9001 $110
GM Performance 10105117 Head Gaskets $20
Richmond Gear GM85373 3.73 $166
I already have a posi from 1979 camaro.
Should I upgrade stock springs with Summit set 174001 ($64) ?
Should I upgrade stock converter with G2699 (1,700-2,100 Stall) for $90 ?
By the way, I not going to be racing. Just having fun at stop lights!
One more thing. I actaully bought a 5.3L from Craigslist but it turned out to be from a stolen struck!!! I had to give it up. Long story.
Waid
The Lunati 10001K ($100) is identical to Summit K1103 ($100) & Elgin E922K. The Elgin E922K comes with new spring kit $147. I am sure the same company made the same cams. Sounds better if you say I have Lunati Cam! Never heard of Elgin.
Everything I read and according my service manual, my motor does actually have 8.5:1 compression ratio. Will know for sure when I take the heads off. The compression did drop to 8.2, but it was in 1979. Even if it actually has 8.2:1, I am planning to use the GM Performance 10105117 Head Gaskets (.028”) which should raise it a little to 8.2:1 to 8.35:1. If I use the shim head gasket (0.015”), the compression would go from 8.2:1 to 8.56:1. Since my car/motor still has only 37,000 miles on it, it should be in good shape and I might just considering using the 0.015” head gasket.
http://www.novaresource.org/engine.htm
Here is my extreme budget combo:
Lunati 10001K cam/lifters $100
Summit Spring set 174001 $65
G2699 (1,700-2,100 Stall) for $90
Edelbrock Performer Intake 2101 $130
Summit Racing Headers G9001 $110
GM Performance 10105117 Head Gaskets $20
Richmond Gear GM85373 3.73 $166
I already have a posi from 1979 camaro.
Should I upgrade stock springs with Summit set 174001 ($64) ?
Should I upgrade stock converter with G2699 (1,700-2,100 Stall) for $90 ?
By the way, I not going to be racing. Just having fun at stop lights!
One more thing. I actaully bought a 5.3L from Craigslist but it turned out to be from a stolen struck!!! I had to give it up. Long story.
Waid
Last edited by waid1017; 04-05-2012 at 01:51 PM.
04-05-2012, 02:25 PM
#15
Race Director
Your build reminds me of a low-budget build I did a while back on a '75 Camaro:
350 CUI, 8.5:1 CR.
$99 headers
Offenhauser 360, later Edelbrock performer intake.
600 CFM Holley.
Summit 1103 cam
Found a set of 442 heads w/ 67cc chambers. Did some pocket porting myself.
Z28 "pink" valve springs.
Compression probably ended up a little over 9:1.
3.23 gears, 2000 rpm B&M holeshot converter.
The thing ran better than it had any right to. I beat early 90's 5.0 mustangs with bolt-ons by 3-4 car lengths.
350 CUI, 8.5:1 CR.
$99 headers
Offenhauser 360, later Edelbrock performer intake.
600 CFM Holley.
Summit 1103 cam
Found a set of 442 heads w/ 67cc chambers. Did some pocket porting myself.
Z28 "pink" valve springs.
Compression probably ended up a little over 9:1.
3.23 gears, 2000 rpm B&M holeshot converter.
The thing ran better than it had any right to. I beat early 90's 5.0 mustangs with bolt-ons by 3-4 car lengths.
04-05-2012, 07:51 PM
#16
Le Mans Master
Member Since: Mar 2008
Location: Oxford MA-----You just lost the game!!!!
Posts: 5,948
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The 1104 cam specs look very similar to the old "151" camshaft, but even bigger, and the 151 cam has a reputation as a cam that likes a lot of compression, so I would not recommend it, just on that basis. I am definitely not an expert, so take that for what it's worth, I'm just throwing it out there as something to think about.
Keep the shiny side up!
Scott
Keep the shiny side up!
Scott
04-05-2012, 07:58 PM
#17
Le Mans Master
Member Since: Mar 2008
Location: Oxford MA-----You just lost the game!!!!
Posts: 5,948
Likes: 0
Received 62 Likes
on
52 Posts
I just want to say I really appreciate all of your feedback.
The Lunati 10001K ($100) is identical to Summit K1103 ($100) & Elgin E922K. The Elgin E922K comes with new spring kit $147. I am sure the same company made the same cams. Sounds better if you say I have Lunati Cam! Never heard of Elgin.
Everything I read and according my service manual, my motor does actually have 8.5:1 compression ratio. Will know for sure when I take the heads off. The compression did drop to 8.2, but it was in 1979. Even if it actually has 8.2:1, I am planning to use the GM Performance 10105117 Head Gaskets (.028”) which should raise it a little to 8.2:1 to 8.35:1. If I use the shim head gasket (0.015”), the compression would go from 8.2:1 to 8.56:1. Since my car/motor still has only 37,000 miles on it, it should be in good shape and I might just considering using the 0.015” head gasket.
http://www.novaresource.org/engine.htm
Here is my extreme budget combo:
Lunati 10001K cam/lifters $100
Summit Spring set 174001 $65
G2699 (1,700-2,100 Stall) for $90
Edelbrock Performer Intake 2101 $130
Summit Racing Headers G9001 $110
GM Performance 10105117 Head Gaskets $20
Richmond Gear GM85373 3.73 $166
I already have a posi from 1979 camaro.
Should I upgrade stock springs with Summit set 174001 ($64) ?
Should I upgrade stock converter with G2699 (1,700-2,100 Stall) for $90 ?
By the way, I not going to be racing. Just having fun at stop lights!
One more thing. I actaully bought a 5.3L from Craigslist but it turned out to be from a stolen struck!!! I had to give it up. Long story.
Waid
The Lunati 10001K ($100) is identical to Summit K1103 ($100) & Elgin E922K. The Elgin E922K comes with new spring kit $147. I am sure the same company made the same cams. Sounds better if you say I have Lunati Cam! Never heard of Elgin.
Everything I read and according my service manual, my motor does actually have 8.5:1 compression ratio. Will know for sure when I take the heads off. The compression did drop to 8.2, but it was in 1979. Even if it actually has 8.2:1, I am planning to use the GM Performance 10105117 Head Gaskets (.028”) which should raise it a little to 8.2:1 to 8.35:1. If I use the shim head gasket (0.015”), the compression would go from 8.2:1 to 8.56:1. Since my car/motor still has only 37,000 miles on it, it should be in good shape and I might just considering using the 0.015” head gasket.
http://www.novaresource.org/engine.htm
Here is my extreme budget combo:
Lunati 10001K cam/lifters $100
Summit Spring set 174001 $65
G2699 (1,700-2,100 Stall) for $90
Edelbrock Performer Intake 2101 $130
Summit Racing Headers G9001 $110
GM Performance 10105117 Head Gaskets $20
Richmond Gear GM85373 3.73 $166
I already have a posi from 1979 camaro.
Should I upgrade stock springs with Summit set 174001 ($64) ?
Should I upgrade stock converter with G2699 (1,700-2,100 Stall) for $90 ?
By the way, I not going to be racing. Just having fun at stop lights!
One more thing. I actaully bought a 5.3L from Craigslist but it turned out to be from a stolen struck!!! I had to give it up. Long story.
Waid
http://www.northernautoparts.com/Pro...tModelId=22765
It's .015" compressed thickness instead of .028". It won't work a miracle, but it'll help.
Keep the shiny side up!
Scott
04-05-2012, 08:35 PM
#18
Safety Car
Im not a fan of 882 heads but I have seen Camaros run in the mid 7s in the 1/8 with those heads using over 500 lift cams so I know for a fact your not over camming the engine with a 465 lift cam.
04-05-2012, 08:51 PM
#19
Race Director
1104 Lift is fine but the duration is way too high for a 8.2 compression engine or a 8.5 to 1
Last edited by 63mako; 04-05-2012 at 08:55 PM.
04-05-2012, 08:54 PM
#20
Race Director
Everything I read and according my service manual, my motor does actually have 8.5:1 compression ratio. Will know for sure when I take the heads off. The compression did drop to 8.2, but it was in 1979. Even if it actually has 8.2:1, I am planning to use the GM Performance 10105117 Head Gaskets (.028”) which should raise it a little to 8.2:1 to 8.35:1. If I use the shim head gasket (0.015”), the compression would go from 8.2:1 to 8.56:1. Since my car/motor still has only 37,000 miles on it, it should be in good shape and I might just considering using the 0.015” head gasket.