Pontiac 6x head specs

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August undefined, 2024

WebJul 27, 2002 · The 6X heads will require less work as they already have the large intake valves in them. Mill the 6X heads .060" off the deck side and .030" off the intake side and your compression ratio will end up in the 9:1 range, and possibly as high as 9.3:1 depending on the overbore of the engine and how far down the pistons are in the holes at TDC. Web38 rows · Click Here for Edelbrock Aluminum Head Installation Sheet PONTIAC HEAD …

Pontiac V8 Cylinder Heads - Casting numbers and Specs

http://www.wallaceracing.com/cratio0001.htm 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 ... north american paper company

Pontiac Heads

WebPontiac 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 excess casting material in oil drain back areas. WebA flow bench is used to measure the intake and exhaust airflow of a cylinder head. A typical cast-iron Pontiac D-port measures 190 to 210 cfm of peak intake airflow at 28 inches of … WebBP ports more Pontiac cylinder heads than anyone in the world. ... Pontiac Engine Torque Specs; Pontiac Cars (Body Types) Pontiac Engine Information; Instruction Sheets; … north american passive house network

Pontiac Cast Iron Cylinder Heads, Ported (Pair) - Butler Performance

Performance Valve Job - Opening Up Pontiac D-Port Heads For …

WebMar 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 … Web186 rows · Sep 23, 2006 · Never assume that the volume is at stock spec. Always have … how to repair chips in ceramic floor tilesWebApr 1, 2007 · However, stroking the engine to say 461ci and retaining the 6X heads, the torque will increase to tire-frying proportions, and the W72 block will hold up better than … how to repair chipping car paint

"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 " - Pontiac 6x head specs

Pontiac 6x head specs

Kauffman Aluminum D Port Pontiac Cylinder Head - Tin …

WebJan 1, 1999 · The 6X heads are popular and plentiful; most '76 to '79 350s and 400s had them as standard equipment. ... Pontiac #96 Head Flow Numbers (at 28 inches of H2O) … 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 …

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WebPontiac factory cast iron heads came with different styles of sealing such as valve stem o-rings and positive l. Welcome Guest My Account Order Status Wishlist (866)762-7527. ... Pontiac Heads; Pontiac Engine Torque Specs; … WebFind many great new & used options and get the best deals for 1971 Pontiac GTO #96 Cylinder Heads at the best online prices at eBay! Free shipping for many products!

WebInformation about PMD heads is still being gathered. What is apparent is that while Pontiac had policies and specifications, both seemed to fluctuate as need be to build engines and … WebPorts have a thick roof, wall, and gasket material areas for performance port work. Exhaust port is standard Pontiac D-port configuration. Utilizes standard pushrod location for 5/16″ pushrods. Stock ports flow of …

WebOct 13, 2016 · So anyway, I'll get to the engine specs Pontiac 461 - bore 4.18, stroke 4.21 Rods length 6.625 9.4:1 compression Edelbrock p65 dual quad/dual plane intake 2 edelbrock 600 carbs 1 5/8 diameter/unequal length primary headers 2.5 x pipe exhaust. Mufflers to be used but not yet purchased 6x heads. Flow as follows Lift Intake Exhaust E/I ratio WebSep 24, 2024 · After consulting with the Pontiac faithful online, Steve learned that the 350's original 6X-4 heads would work perfectly on the 455. Pontiac used these heads in the mid-'70s, and unlike most earlier 350 heads, these utilize the same 2.11/1.66-inch valves as the large-displacement Pontiac engines, while using a combustion chamber that, while good …

WebNov 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 ...

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 … how to repair chips in porcelain tubsWebDetails. 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. how to repair chips in chinaWebOct 9, 2003 · The 4X head was the 49-state casting used on all '73-74 400 and 455ci engines. Since Pontiac offered the 400 2-barrel, the 400 4-barrel with both manual and … how to repair chips in fiberglass bathtubhttp://pontiacpower.org/4xheads.htm north american paul tillich society how to repair chipping on woodWebAug 3, 2013 · The 6X heads were used on some 350 and 400 Pontiacs. The resulting compression ratio depending on which chamber size you have. Look for the secondary … north american pay pro 10WebAftermarket 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 … how to repair chips in granite countertop