Sub 220 Duration cams with at least .575 lift?
Are there any? Lingenfelter GT2-3 is the only when I can think of. at .578" 207/220
TR did their Old Man Cam, out of business now. that was 215/220 .600
Seems going more than 220 is popular/common.
TR did their Old Man Cam, out of business now. that was 215/220 .600
Seems going more than 220 is popular/common.
I think that most of the sub 220 cams are aimed at the truck crowd. When you keep the lift on the lower side you still see a nice gain over stock, but you can use a very economical spring with excellent lifespan.
Summit Pro LS SUM-8720 is a Gem! 218/227 112+2, .600/.600 Lift and lobes designed specially for use with 918 springs. Let us know what you are looking for your combination and we can determine if there is something that would be a better match.
Good call, Summit!
TSP 212/218 .600/.600 112
TSP 214/220 .600/.600 112
TSP 216/220 .600/.600 112
I have the 216/220 in my 5.7 04 Monaro (GTO) and I really like it. Lots of below the curve power. I was surprised that not only did it make more top end power than my Cam Motion 218/226 it feels just as smooth as that cam and is more quiet! Only had it a few months but so far I really rate the TSP cams and having had a few brand of cams, TSP is the one I would buy one again.
TSP 214/220 .600/.600 112
TSP 216/220 .600/.600 112
I have the 216/220 in my 5.7 04 Monaro (GTO) and I really like it. Lots of below the curve power. I was surprised that not only did it make more top end power than my Cam Motion 218/226 it feels just as smooth as that cam and is more quiet! Only had it a few months but so far I really rate the TSP cams and having had a few brand of cams, TSP is the one I would buy one again.
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TSP 212/218 .600/.600 112
TSP 214/220 .600/.600 112
TSP 216/220 .600/.600 112
I have the 216/220 in my 5.7 04 Monaro (GTO) and I really like it. Lots of below the curve power. I was surprised that not only did it make more top end power than my Cam Motion 218/226 it feels just as smooth as that cam and is more quiet! Only had it a few months but so far I really rate the TSP cams and having had a few brand of cams, TSP is the one I would buy one again.
TSP 214/220 .600/.600 112
TSP 216/220 .600/.600 112
I have the 216/220 in my 5.7 04 Monaro (GTO) and I really like it. Lots of below the curve power. I was surprised that not only did it make more top end power than my Cam Motion 218/226 it feels just as smooth as that cam and is more quiet! Only had it a few months but so far I really rate the TSP cams and having had a few brand of cams, TSP is the one I would buy one again.
Good data on this cam in Holdeners sloppy stage 2 vs the world! If that video has been out when I bought I may have gotten that instead of Summit stage 2.
Yes, we love the .050 valve events of the hotcam. Our lobe profiles are heavily revised and modernized and that's why it's doing so well even vs. other .600 lift cams in the same range.
Last edited by Summitracing; Nov 13, 2020 at 10:01 AM.
Here are a couple budget cams if you can compromise a bit . Elgin E1839p 220/224 .575/.575. lsa 112
SDPC. SDR51902 LS6 power max plus 220/222. .570/.570. lsa112+2 the Scoggin Dickey cam is $239 and the Elgin is approximately $250
SDPC. SDR51902 LS6 power max plus 220/222. .570/.570. lsa112+2 the Scoggin Dickey cam is $239 and the Elgin is approximately $250
So do I but in my opinion, you don't need 115 LSA for that with cams this size. -6 to -10 overlap will do it in a 5.7. For example, my 216/220 112 (-6 overlap) idles smooth but has a little more bark then the 218/226 116 (-10 overlap) which basically felt stock. With a quiet exhaust, you would be hard pressed to pick the 216/220 on 112 but you could choose the 114 LSA option (off the shelf), that's -10 overlap and would be very smooth. I would be surprised if that cam didn't give you what it sounds like you are after.
I was considering the Kelford C4B replacement. The 108-K, as that was designed with the Monaro/GTO in mind-a car heavier than an F-body. The 243s could use more valve lift than .561 hence the original question.
Do you use Tri-Y or 4 into 1 headers?
Do you use Tri-Y or 4 into 1 headers?
I found that the TSP 216/220 on 112 LSA has plenty to get the heavier GTO/Monaro moving from low rpm. The bigger Cam Motion torque titan 218/226 116 I had is similar specs to a C4B cam but the opposite to the smaller cam, it started to move around 3000 rpm but actually died off quicker up top. It didn't suit my heavier car.
I would have actually gone a TSP 212/218 .600/.600 112 except I have 3.9 gears, plus vendors on here recommended the 216/220 over the 212/218. This cam would have even more down low based on the experience I had with my previous 214/217 112.
I run shortly 4-1 headers. I also run CNC ported 241 heads.
I would have actually gone a TSP 212/218 .600/.600 112 except I have 3.9 gears, plus vendors on here recommended the 216/220 over the 212/218. This cam would have even more down low based on the experience I had with my previous 214/217 112.
I run shortly 4-1 headers. I also run CNC ported 241 heads.
I use the VE calculator here and have options A, B,C, D. Wondering what the highest lift per short duration is possible and with what single spring.
Seems .560 is the limit for the soft LS2/6 spring unless going GT2-3 and that has too little duration on the intake/too wide an LSA
Or
it is .598/.600 and using the 918 or so and look into changing valve springs every few years.
I use the VE calculator here and have options A, B,C, D. Wondering what the highest lift per short duration is possible and with what single spring.
Seems .560 is the limit for the soft LS2/6 spring unless going GT2-3 and that has too little duration on the intake/too wide an LSA
Or
it is .598/.600 and using the 918 or so and look into changing valve springs every few years.
Seems .560 is the limit for the soft LS2/6 spring unless going GT2-3 and that has too little duration on the intake/too wide an LSA
Or
it is .598/.600 and using the 918 or so and look into changing valve springs every few years.
I had a Trans Am with a 71 455 HO, 4spd and 3.73. Love the big block tq tooling around town. Wonder if the LS1 with 243s. can mimic that tq. curve NA.
Do not care about power above 6200rpm.
Do not care about power above 6200rpm.











