holley systemax kits???
Thread Starter
Instructor
Joined: Mar 2006
Posts: 107
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holley systemax kits???
on the holley web site it says that the kit with the other parts it recomneds can get the 350 up to 425 HP. does this sound like a good kit? cause i wouldnt mind gettin my 81 vett up around the 400 hp range, than maybe a lil NOS for the strip. let me know what you guys think about it.
Pro
Joined: Mar 2005
Posts: 559
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From: James Island South Carolina
I believe the Systemax kit requires at least 10:1 compression. If your motor is stock, you may have about 8:5 compression. I've looked at the kit too and my compression isn't high enough as I see it. I would call the tech folks at Holley for more info.
Thread Starter
Instructor
Joined: Mar 2006
Posts: 107
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yeah
if i do end up gettin the kit i would buy a forged steel crank pistons and rods, and get 10.5:1ish compression pistons. Because i want to run a little shot of NOS too. more for show than to use regularly.
Racer
Joined: Mar 2005
Posts: 445
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From: SAN DIEGO(SANTEE) CA.
What The ????
Originally Posted by HighHeat303
what does zero deck mean? does that mean i have to use a block that has not been decked?
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Le Mans Master
Joined: Jul 1999
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From: Sewell NJ
Zero decking an engine constitutes shaving the block until it is even with the top of the pistons. By doing this you increase the quench and cause turbulation of the mixture, all very good for power. Care has to be taken to maintain about .040 clearance between the piston and the head. This is usually accomplished through the use of the correct thickness head gasket. However, if you have a numbers matching block, and you don't want to lose the numbers you cant deck the block. You also have to watch the amount you take off the block because if you take off a significant amount you may run into sealing problems with the intake manifold. In some cases the intake has to be milled to match the new angle of the heads.
Last edited by vettfixr; Apr 1, 2006 at 01:53 PM.
Racer
Joined: Mar 2005
Posts: 445
Likes: 0
From: SAN DIEGO(SANTEE) CA.
Originally Posted by vettfixr
Zero decking an engine constitutes shaving the block until it is even with the top of the pistons. By doing this you increase the quench and cause turbulation of the mixture, all very good for power. Care has to be taken to maintain about .040 clearance between the piston and the head. This is usually accomplished through the use of the correct thickness head gasket. However, if you have a numbers matching block, and you don't want to lose the numbers you cant deck the block. You also have to watch the amount you take off the block because if you take off a significant amount you may run into sealing problems with the intake manifold. In some cases the intake has to be milled to match the new angle of the heads.
