hot cam 12480002
Thread Starter
Burning Brakes
Joined: Jun 2009
Posts: 840
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From: Syracuse IN
hot cam 12480002
I have a Stroked out ZZ4 brand new. Rotating assy.Actually a 377 CI. I was looking at GM hot cam kit # 12480002 This is for the Vortec Cast heads The kit also includes the 1.6 Roller rockers. Any thought on this? We usually run a completly differant cam configuration in our Marine versions. I am looking for ideas and comments. Oh, our car is an 81 with a Manual 4 speed at the present time. Al
Le Mans Master
Joined: Jun 2005
Posts: 5,447
Likes: 3
From: Syracuse NY
I added the HotCam to my FastBurn 385 along with the 1:6 rockers. I believe it moved the powerband up a bit. It really wakes up between 3-3500 rpms.
It does have a nice flat torque curve and pulls hard up to at least 6000 rpms.
I believe the only difference between what I started with and your ZZ4 is the heads and I hope this was helpful.
It does have a nice flat torque curve and pulls hard up to at least 6000 rpms.
I believe the only difference between what I started with and your ZZ4 is the heads and I hope this was helpful.
Burning Brakes
Joined: Mar 2012
Posts: 871
Likes: 73
From: Memphis Tennessee
I've just installed that cam, but it was in an LT1. Before I had this motor I was looking to use Vortec heads with a 400 I have. If I remember correctly, the Vortec heads can't take that much lift. I don't think that the LT4 springs will work with those heads.
To get more lift out of Vortecs, they have to be machined for taller springs, OR you can use Beehive springs.
To get more lift out of Vortecs, they have to be machined for taller springs, OR you can use Beehive springs.
Team Owner
Joined: Apr 1999
Posts: 21,953
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
I have a Stroked out ZZ4 brand new. Rotating assy.Actually a 377 CI. I was looking at GM hot cam kit # 12480002 This is for the Vortec Cast heads The kit also includes the 1.6 Roller rockers. Any thought on this? We usually run a completly differant cam configuration in our Marine versions. I am looking for ideas and comments. Oh, our car is an 81 with a Manual 4 speed at the present time. Al
They are only called a hot cam because computer controlled ignitions with knock sensors
Burning Brakes
Joined: Feb 2011
Posts: 849
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From: Woodland California
My 1990 with 6 speed could use a boost.
Ralph
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Burning Brakes
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From: Woodland California
Team Owner
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From: Reno Nevada
2024 C3 of the Year Finalist- Modified
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