416 Heads
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From: Saskatoon, SK
Car: 85 Camaro IROC-Z
Engine: Dual Snorkel 350 Carb
Transmission: 700R4
416 Heads
Did all the 1985 Camaro 305's come with 416 heads?
Why did the LG4 only have 8.6 cr when the L69 had 9.5?
Why did the LG4 only have 8.6 cr when the L69 had 9.5?
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From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
in 1985, all the 305's got the 9.5:1 flattop four valve relief pistons. the 82-84 lg4's were the 8.6:1 pistons.
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From: Saskatoon, SK
Car: 85 Camaro IROC-Z
Engine: Dual Snorkel 350 Carb
Transmission: 700R4
Si, are you sure that was a LG4? Those pistons definitely don't look like mine. I had .020 stamped dished pistons.
Joined: Jun 2002
Posts: 13,576
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From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
that means your engine had been rebuilt and bored .020" over, and it was filled with the wrong pistons
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From: Mobile, AL
Car: GTA
Engine: 383 HSR
Transmission: TH-700R4
Axle/Gears: 3.42
Originally Posted by mw66nova
that means your engine had been rebuilt and bored .020" over, and it was filled with the wrong pistons
Joined: Jun 2002
Posts: 13,576
Likes: 30
From: Harford County, MD
Car: camaro sportcoupe
Engine: 7.0L
Transmission: G-Force GF5R
Axle/Gears: Moser 9"
nope, .000 would be standard (actually, i don't think they stamp anything on them) but pistons are available in .020, .030, .040, and .060 sizes.
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Joined: Jun 2002
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From: England UK
Car: 85 Z28
Engine: LG4 modified
Transmission: 700R4
Originally Posted by 85z28iroc
Si, are you sure that was a LG4? Those pistons definitely don't look like mine. I had .020 stamped dished pistons.
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If you're concerned about what heads are installed, remove a rocker cover and look. It doesn't matter if ALL '85 305s came with 416s, only your's.
Looks like that engine could have used a little synthetic. Now it looks like it could use a little hot-tank time.
Looks like that engine could have used a little synthetic. Now it looks like it could use a little hot-tank time.
Last edited by Vader; Jun 24, 2006 at 09:20 AM.
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From: Mobile, AL
Car: GTA
Engine: 383 HSR
Transmission: TH-700R4
Axle/Gears: 3.42
Originally Posted by Vader
If you're concerned about what heads are installed, remove a rocker cover and look. It doesn't matter if ALL '85 305s came with 416s, only your's.
Looks like that engine could have used a little synthetic. Now it looks like it could use a little hot-tank time.
Looks like that engine could have used a little synthetic. Now it looks like it could use a little hot-tank time.
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