416 Heads?
02-05-2008, 06:23 PM
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Car: 1987 Firebird
Engine: Present=350/4brl, Future=455 H.O.
Transmission: Present=700R4, Future=Richmond 6Spd
Axle/Gears: Now Stock, Later 3.73
416 Heads?
I have 416 heads on my 350 came like that out of the donor truck are they good enough to use as perfomance, and by the way they are really clean. Thanks for all the help guys.
02-05-2008, 06:47 PM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Better than the vast majority of 350 heads.
They work even better with 1.94" intake valves, 1.60" exhaust valves if you're feeling up to it, and basic port clean-up, particularly in the bowl area.
They work even better with 1.94" intake valves, 1.60" exhaust valves if you're feeling up to it, and basic port clean-up, particularly in the bowl area.
02-05-2008, 09:12 PM
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Car: 1987 Firebird
Engine: Present=350/4brl, Future=455 H.O.
Transmission: Present=700R4, Future=Richmond 6Spd
Axle/Gears: Now Stock, Later 3.73
Re: 416 Heads?
Alright thanks i think i can do that i thought i had 882's but when it went to about 5 grand it sounded like a built race engine so it has work done to it more than i thought. And arent those for 305's.
02-08-2008, 10:28 AM
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Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: 416 Heads?
They can be ported and upgraded with the bigger valves to work quite respectably on a 350. Better than 882's IMHO.
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