[C1] 283/270 cam
05-09-2018, 02:12 PM
#1
283/270 cam
Hi Guys, I am having my C-1 1958 vette engine rebuilt and it includes a new cam.
I have input from two mechanics with ASE Certification, but they have a disagreement with the cam.
One guys spec's 097 cam and the other spec's 092.
What's the difference in the two cams and which is correct for my 283 dual quad engine?
thanks for your input. cheers
I have input from two mechanics with ASE Certification, but they have a disagreement with the cam.
One guys spec's 097 cam and the other spec's 092.
What's the difference in the two cams and which is correct for my 283 dual quad engine?
thanks for your input. cheers
05-09-2018, 02:19 PM
#2
Melting Slicks
Hi Guys, I am having my C-1 1958 vette engine rebuilt and it includes a new cam.
I have input from two mechanics with ASE Certification, but they have a disagreement with the cam.
One guys spec's 097 cam and the other spec's 092.
What's the difference in the two cams and which is correct for my 283 dual quad engine?
thanks for your input. cheers
I have input from two mechanics with ASE Certification, but they have a disagreement with the cam.
One guys spec's 097 cam and the other spec's 092.
What's the difference in the two cams and which is correct for my 283 dual quad engine?
thanks for your input. cheers
I don't know what an 092 is.
The following users liked this post:
BruceP7 (05-10-2018)
05-09-2018, 02:20 PM
#3
Team Owner
Why would you not use the 097? I ran that in my 61 for years and it’s near perfection.
The following users liked this post:
BruceP7 (05-10-2018)
05-09-2018, 03:59 PM
#4
Race Director
Member Since: May 2000
Location: Redondo Beach USA
Posts: 12,487
Received 1,974 Likes
on
1,188 Posts
The 283/270 used the Duntov cam, 3736097, and this the THE OE mechanical lifter cam for all '57-'63 mechanical lifter cam engines.
An exact duplicate is made by Federal Mogul, CS-113R, and it only needs the same valve springs used on all other contemporaneous small blocks, but use the '67-up second design, VS677, which are inexpensive and a slight improvement over the earlier '57-'66 springs and nearly the same specs.
Don't let some mechanic, ASE certified or not, talk you into "racing springs". The fact that they can't even agree on the last three digits of the OE part number tells me they don't know much about vintage Corvette engines.
You should do your own research on machining operations and parts and approve all machining operations and every brand/part number that goes into the engine before they proceed. The Web if full of horror stories from guys who gave their engines to some "mechanic" or "engine builder" and ended up with a disaster.
Don't be one of those guys.
Duke
An exact duplicate is made by Federal Mogul, CS-113R, and it only needs the same valve springs used on all other contemporaneous small blocks, but use the '67-up second design, VS677, which are inexpensive and a slight improvement over the earlier '57-'66 springs and nearly the same specs.
Don't let some mechanic, ASE certified or not, talk you into "racing springs". The fact that they can't even agree on the last three digits of the OE part number tells me they don't know much about vintage Corvette engines.
You should do your own research on machining operations and parts and approve all machining operations and every brand/part number that goes into the engine before they proceed. The Web if full of horror stories from guys who gave their engines to some "mechanic" or "engine builder" and ended up with a disaster.
Don't be one of those guys.
Duke
Last edited by SWCDuke; 05-09-2018 at 04:02 PM.
The following users liked this post:
BruceP7 (05-10-2018)
05-09-2018, 04:08 PM
#5
Team Owner
Member Since: Oct 2000
Location: Washington Michigan
Posts: 38,899
Received 1,859 Likes
on
1,102 Posts
Never heard of an "092" cam, and I have every cam listing and chart ever published by Chevrolet. ASE certification is great, but it doesn't mean anything in terms of Corvette knowledge. I sold hundreds of "097" Duntov cams for $18.00 each over the parts counter at North Chevrolet in Birmingham, Michigan in 1959-1961. Why would anyone not want to use the correct original camshaft on an iconic build like a 283/270?
The following users liked this post:
BruceP7 (05-10-2018)
05-09-2018, 04:23 PM
#6
Burning Brakes
Member Since: Dec 2008
Location: PURCELLVILLE VA
Posts: 1,080
Received 257 Likes
on
176 Posts
C1 of Year Finalist (performance mods) 2019
2017 C1 of Year Finalist
I have a 283 with the 097 in my ‘54, set up just as it would of been in 1958. Nothing fancy, it’s a real peppy cruiser and I use pump gas. I love that cam.
Last edited by DAN70; 05-09-2018 at 04:24 PM.
05-09-2018, 05:06 PM
#7
Team Owner
Member Since: Mar 2003
Location: Greenville, Indiana
Posts: 26,118
Received 1,844 Likes
on
1,398 Posts
That sounds like a real Corvette!
The following users liked this post:
DAN70 (05-10-2018)
05-09-2018, 11:27 PM
#9
Melting Slicks
I have a 283 with the 097 in my ‘54, set up just as it would of been in 1958. Nothing fancy, it’s a real peppy cruiser and I use pump gas. I love that cam.
https://youtu.be/junOy3P48kk
https://youtu.be/junOy3P48kk
The following users liked this post:
DAN70 (05-10-2018)