Pontiac 6x head specs
WebJun 10, 2024 · The 6X heads have the much needed for a 455 size motor 3 to 4 CC larger Intake port that the long stroke of the 455 ... 73 Ventura, SOLD 455, 3740lbs, 11.30's at … http://ronspontiacpage.com/reference-pages/stockheadspecs.htm
Pontiac 6x head specs
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http://www.wallaceracing.com/cratio0001.htm WebJan 1, 2006 · Standard valve sizes for the KRE D-port heads are 2.11/1.66 inches-this is what our test heads have, and it's the same as Pontiac used on later factory heads. Optional are …
WebDetails. The Edelbrock #60599 Performer RPM cylinder head is designed for outstanding performance gains in 1962-79 389-455 c.i.d. Pontiac engines. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head. The Edelbrock #60599 Performer RPM head with the 72cc combustion chamber are for higher compression engines. WebJan 25, 2013 · When it comes to cast-iron Pontiac cylinder heads, the Round-Ports are the fancy of every performance enthusiast, but the smog-era D-port (4X, 5C, and 6X) castings …
WebCylinder Head Chamber Volume, cc's. #400 bored .060" %428 bored .060" ~455 bored .060" *Actual displacement of 350. The above figures assume 10 cc for .042" (crushed) head gasket, 6 cc valve reliefs for 400 stock pistons, 5 cc for -. 023" deck height on 4.120" bore and flat top pistons (no dome). To correct for pop-up pistons, subtract dome ... There are aftermarket heads available but, If you don’t want to use aftermarket heads. Then the best option would be to choose a high output Pontiac heads produced from 1967 on. The 1962 and 1963 Super Duty engines would work well also. However, they are harder to find and like the 1967 heads, they have a closed … See more For 1967 Pontiac increased the valve size of the high output engines. Increasing the intake valves from 1.92” to 2.11” and the exhaust valves from 1.66 to 1.77”. … See more
WebApr 3, 2011 · Pontiac Valve-Seat Angles Most regular-production Pontiac engines produced during the '60s utilized 1.92/1.66-inch-diameter intake and exhaust valves. Beginning in '67, engineers rolled the valve ...
http://www.wallaceracing.com/head1.htm dyson standing fanWebNov 8, 2015 · 9,732 Posts. #3 · Aug 30, 2015. On Pontiacs you have to know what the installed height is so you can adjust the seat pressure. Use the lightest spring that will give valve train control and a decent installed pressure. Usually less than 115 lbs on a hydraulic flat tappet cam. Pontiacs, in general, have very short valve springs and are ... c section pain medication morphineWebPontiac Cast Iron Cylinder Head The port work includes fully ported intake and exhaust ports, deburred chambers, pushrod holes elongated for 1.65 rockers, and removal of … c-section pain months laterWebMay 10, 2005 · While other heads from the same era may offer satisfactory performance in any given combination, we limited our testing to 4X-7H, 5C-8, 6X-4, 6X-8, and 6H-6 … dyson staubsauger airways blockedWebPontiac Melling Ram Air IV "041" Reproduction Camshaft 304/315 231/240 113 Hyd w/ .469/.516 Lift c section patient educationWebMar 13, 2014 · However, Pontiac made two different 6X heads in '77. Both have the 2.11/1.66 valves but different combustion chambers. The 6X-8 head was on the 180HP 400s with a 7.6 compression ratio. The 6X-4 heads were on the 200HP 400s with a 8.0 compression ratio. Now to complicate things a little more, the 6X-4/6S head was also … c section pannus tonerWebAftermarket Heads. Private manufacturers offer heads that will bolt onto your Pontiac V-8 block. These heads are designed primarily for race use and offer even higher performance than any factory Pontiac heads. Here are … c section panty