stock #10110810 heads and 1.6 rockers
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From: Austin, Texas
Car: 86 iroc
Engine: 383HSR
Transmission: custom 700r
Axle/Gears: moser 9" 3.90
stock #10110810 heads and 1.6 rockers
i am running casting #10110810 will 1.6 rockers work with a lunati 60101 cam
lift with the 1.6s will be .483 .499
lift with the 1.6s will be .483 .499
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
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Re: stock #10110810 heads and 1.6 rockers
...And your question is..?
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: stock #10110810 heads and 1.6 rockers
Doubt it.
The retainer will be dangerously close to the seals/guide. Chances are those heads have positive seals on them?
Measure and find out how much clearance you have. .060" breathing room is ok.
You can shim the setup higher and use offset locks if you want.
The retainer will be dangerously close to the seals/guide. Chances are those heads have positive seals on them?
Measure and find out how much clearance you have. .060" breathing room is ok.
You can shim the setup higher and use offset locks if you want.
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: stock #10110810 heads and 1.6 rockers
I just posted how about this recently, and i'll be damned if I could find the thread.... It was about valve spring micrometers, and if you really need one...
I just use an old school inside caliper and a digital caliper. Remove the valve spring and measure with the oldschool caliper and measure the caliper with your digital calipers. Total cost is ~$40, and you'll use those tools LOTS.
I just use an old school inside caliper and a digital caliper. Remove the valve spring and measure with the oldschool caliper and measure the caliper with your digital calipers. Total cost is ~$40, and you'll use those tools LOTS.
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Member
Joined: Jan 2008
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From: Austin, Texas
Car: 86 iroc
Engine: 383HSR
Transmission: custom 700r
Axle/Gears: moser 9" 3.90
Re: stock #10110810 heads and 1.6 rockers
couldnt i just install the rockers and turn the motor by hand a few revolutions feeling for any interference
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Re: stock #10110810 heads and 1.6 rockers
Thread Starter
Member
Joined: Jan 2008
Posts: 218
Likes: 0
From: Austin, Texas
Car: 86 iroc
Engine: 383HSR
Transmission: custom 700r
Axle/Gears: moser 9" 3.90
Re: stock #10110810 heads and 1.6 rockers
theres no way around pulling some springs to check that clearance huh?
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: stock #10110810 heads and 1.6 rockers
To be safe, no. Just pull one exhaust and one intake. The rest should be very similar.
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Member
Joined: Jan 2008
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From: Austin, Texas
Car: 86 iroc
Engine: 383HSR
Transmission: custom 700r
Axle/Gears: moser 9" 3.90
Re: stock #10110810 heads and 1.6 rockers
would clearancing the valve guides be someting i can do myself
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: stock #10110810 heads and 1.6 rockers
Got an angle grinder? I think you can.
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: stock #10110810 heads and 1.6 rockers
So you either
-take the heads off, machine them yourself or get a shop do it
-remove the retainers and grind .050" or thereabouts off the bottoms, apparently that'll work
-get some shims and some .050" offset keepers and put them on.
Pick one. But measure it first, you might not even need to. Might.
-take the heads off, machine them yourself or get a shop do it
-remove the retainers and grind .050" or thereabouts off the bottoms, apparently that'll work
-get some shims and some .050" offset keepers and put them on.
Pick one. But measure it first, you might not even need to. Might.
Joined: Mar 2000
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
With swirlport heads, you're already beyond any flow improvement with increased lift at .450". You're simply wasting your time and money.
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