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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: 1979C20 on June 03, 2011, 10:28:22 pm
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What does it take to use them? I recently found my driver head is cracked, so I figured I may as well upgrade! Can I reuse my cam, as its only got 4k miles on it? What parts would I need? Does it matter that my valley doesnt have the screw holes in the center for the rocker hold down thing?
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You just need the vortec heads, the intake manifold, the specific bolts for that manifold, the special gaskets, self aligning rockers, and centerbolt valve covers.
They should fit on any Gen I SBC, which if yours is the 1979 should be fine. Cam stays in the motor.
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You just need the vortec heads, the intake manifold, the specific bolts for that manifold, the special gaskets, self aligning rockers, and centerbolt valve covers.
They should fit on any Gen I SBC, which if yours is the 1979 should be fine. Cam stays in the motor.
X's 2
The stock vortech rockers work as they are self aligning, you'll have to have some machining done on the heads if you have a high lift cam, I forget exactly what lift is ok without the machining but if you have a mild street cam you'll be fine.
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Its a 440 lift 260 duration, which is "the biggest you can run with stock(non vortec) heads". Sounds dimple enough. Maybe i can find a vortec at pick a part
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Would these bolt to my 350? Just curious. Probably not practical. If they could bolt up, what performance would I be looking at?
http://phoenix.craigslist.org/evl/pts/2407564077.html (http://phoenix.craigslist.org/evl/pts/2407564077.html)
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Those would not work, they're for the new generation engines.
Also, If you don't want to run the self aligning rockers, you can use guideplates instead, they'll be cheaper. But pick one, as you cannot run self aligning rockers together with guide plates.