....can't have the cheaper cousin outperforming a Vette 
....on paper anyway........
??Difference between Z-28 and Corvette motor?
Thread Starter
Drifting
Joined: Jun 2007
Posts: 1,693
Likes: 157
From: Miami, FL
??Difference between Z-28 and Corvette motor?
In a 1971 Z28 you could have the LT1 330 HP motor code CGP
How is this different from the 1971 LT1 330 HP Corvette motor code CGZ?
[besides the obvious answer: one was in a Corvette]
Both are 4-speed codes...
How is this different from the 1971 LT1 330 HP Corvette motor code CGZ?
[besides the obvious answer: one was in a Corvette]
Both are 4-speed codes...
Drifting
Joined: Dec 2004
Posts: 1,345
Likes: 3
I think they are the exact same. On the '70 the Camaro's LT-1 was rated 10 HP less due to exhaust difference. I know the '70 rating was Gross and shouldn't have included anything about the exhaust system. Probably marketing.....
Safety Car
Joined: Sep 2003
Posts: 4,206
Likes: 8
From: Belmar NJ
One of the car mags of the day (I still have it somewhere) had a 70 LT1 Vette and a 70 1/2 Z28 nose to nose with the tag line "Only your time slip knows for sure" or something close. 1/4 mi. times were within a 1/10 with the edge to the Vette. The only difference was the exhaust manifold and the Camaro had a single muffler w/two pipes in/out, a few pounds difference in weight, and $3000 lighter on your wallet. /:\
Drifting
Joined: Dec 2002
Posts: 1,861
Likes: 2
From: New Zealand
From June '71 Car & Driver:
"... Today it [LT1] is probably even better known as the Z28, which is what it is called when ordered in the Camaro. Corvette engineers originated the idea so Duntov winces when you say the two engines are the same, but they are...."
"... Today it [LT1] is probably even better known as the Z28, which is what it is called when ordered in the Camaro. Corvette engineers originated the idea so Duntov winces when you say the two engines are the same, but they are...."
Melting Slicks
Joined: Nov 2004
Posts: 2,672
Likes: 6
From: Nevada City California
There are several differences between the Z28 engine in the Camaro and the LT-1 engine in the Corvette for 1971.
1. Exhaust manifolds completely different design. Camaros are log style more restrictive, Corvettes are rams horn style design and freer breathing.
2. Camaro uses conventional points/condensor type ignition, Corvette uses the magnetic pulse transistorized ignition set-up, far superior.
3. Camaro uses a dual snorkel air cleaner housing assembly. Corvette uses a 14 inch open element air cleaner assembly.
1. Exhaust manifolds completely different design. Camaros are log style more restrictive, Corvettes are rams horn style design and freer breathing.
2. Camaro uses conventional points/condensor type ignition, Corvette uses the magnetic pulse transistorized ignition set-up, far superior.
3. Camaro uses a dual snorkel air cleaner housing assembly. Corvette uses a 14 inch open element air cleaner assembly.
Thread Starter
Drifting
Joined: Jun 2007
Posts: 1,693
Likes: 157
From: Miami, FL
There are several differences between the Z28 engine in the Camaro and the LT-1 engine in the Corvette for 1971.
1. Exhaust manifolds completely different design. Camaros are log style more restrictive, Corvettes are rams horn style design and freer breathing.
2. Camaro uses conventional points/condensor type ignition, Corvette uses the magnetic pulse transistorized ignition set-up, far superior.
3. Camaro uses a dual snorkel air cleaner housing assembly. Corvette uses a 14 inch open element air cleaner assembly.
1. Exhaust manifolds completely different design. Camaros are log style more restrictive, Corvettes are rams horn style design and freer breathing.
2. Camaro uses conventional points/condensor type ignition, Corvette uses the magnetic pulse transistorized ignition set-up, far superior.
3. Camaro uses a dual snorkel air cleaner housing assembly. Corvette uses a 14 inch open element air cleaner assembly.
I'm asking because a LT1 Corvette I am looking at has the Z28 LT1 block in it.
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