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Old 11-29-2015, 06:59 PM
atomicjoe23 atomicjoe23 is offline
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So are hydraulic roller lifters an option then. . .I thought that Pontiac engines required modifications to run roller lifters. . .

. . .I just finished reading "How to Build Max-Performance Pontiac V-8's" and they didn't recommend hydraulic roller lifters for Pontiac engines. . .granted that book is more focused on drag racing, but it does talk about balanced, streetable performance.

If hydraulic roller lifters are an option what lifters and cam would you guys recommend for a mild 400 (at the moment anyway, I would like to increase the displacement with an upgraded rotating assembly after I get the suspension/brakes where I want them).

Thanks for the help!
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'67 Pontiac Firebird 400 RA coupe
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Old 11-29-2015, 11:14 PM
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What cylinder heads do you have?
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Old 11-30-2015, 12:11 PM
atomicjoe23 atomicjoe23 is offline
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Ron,

I will verify what heads I have tonight hopefully. . .I need to find the part number on the Holley carb as well to either rebuild or replace it.

They are currently the stock iron heads for a '67 Firebird, but I know that doesn't completely narrow it down.
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'67 Pontiac Firebird 400 RA coupe
http://www.pro-touring.com/forum/showthread.php?t=26557

'97 Chevy Camaro 3.8/M5 coupe
'02 Yamaha R1
'01 Aprilia RS50
'00 Yamaha R6
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  #4  
Old 11-30-2015, 02:56 PM
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Quote:
Originally Posted by atomicjoe23 View Post
Ron,

I will verify what heads I have tonight hopefully. . .I need to find the part number on the Holley carb as well to either rebuild or replace it.

They are currently the stock iron heads for a '67 Firebird, but I know that doesn't completely narrow it down.
All I need is the 2 or 3 digits cast into the top of 2 center exhaust ports ... and whether or not you have ported them.
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Old 11-30-2015, 04:24 PM
atomicjoe23 atomicjoe23 is offline
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I have not ported them. . .I don't know if they were ported by a previous owner or not. . .although I doubt it.

It still has the original intake manifold on it. . .appears that headers and a Holley carb are the only performance mods made to the car before I got it.
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'67 Pontiac Firebird 400 RA coupe
http://www.pro-touring.com/forum/showthread.php?t=26557

'97 Chevy Camaro 3.8/M5 coupe
'02 Yamaha R1
'01 Aprilia RS50
'00 Yamaha R6
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  #6  
Old 12-20-2015, 12:22 PM
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Quote:
Originally Posted by atomicjoe23 View Post
I have not ported them. . .I don't know if they were ported by a previous owner or not. . .although I doubt it.

It still has the original intake manifold on it. . .appears that headers and a Holley carb are the only performance mods made to the car before I got it.
All I need is the 2 or 3 digits cast into the top of 2 center exhaust ports.
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  #7  
Old 12-29-2015, 12:21 PM
atomicjoe23 atomicjoe23 is offline
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Quote:
Originally Posted by Ron Sutton View Post
All I need is the 2 or 3 digits cast into the top of 2 center exhaust ports.
Ron, I'm looking, but there is enough corrosion there that I can't tell what those digits are. . .I'm gonna do some scrubbing with a wire brush to see if I can't get it to a legible point. . .

. . .I just finished removing the hood so I could get a better look.
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'67 Pontiac Firebird 400 RA coupe
http://www.pro-touring.com/forum/showthread.php?t=26557

'97 Chevy Camaro 3.8/M5 coupe
'02 Yamaha R1
'01 Aprilia RS50
'00 Yamaha R6
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