Porting 049 heads
WebAug 23, 2015 · IMO, the 049 is among the very best oval port heads for a mild performance or extra-duty application. They have the "good" chamber (open, large quench pad) and … WebSep 23, 2024 · mildly porting those heads in the bowl area under the valves and getting a good blended valve seat and pocket area and back cutting the valves with a 30 degree back cut to increase low rpm flow rates will be well worth the time and effort theres a very limited selection of matching intake manifolds available
Porting 049 heads
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WebFind many great new & used options and get the best deals for Chevy Big Block 454 BBC 049 Oval Port 353049 Cylinder Heads Pair Original Gm821 at the best online prices at eBay! … WebJul 30, 2009 · The 049 heads have 255/119 cc port size runners, with 122cc combustion chambers. It's really a toss up on which ones to use as the 049's flow more but the 781's will give a little more compression. Personally, I went with the 781's and had 2.19 intake valves and 1.88 exhausts put in. The same can be done to the 049's without any issues.
WebJun 11, 2010 · Actually the 2.19 and 1.88 valves are what make these heads work. Properly done with a Serdi cutter and a 70 degree bowl hog. The sharp edges under the intake seat … WebMay 20, 2015 · Couldn't really find much on stan weiss's site and mortec just listed the 781's with 118cc chamber, 256/114cc ports and the 049's with 122cc chamber, 255/119cc …
WebThe consensus is that with proper porting the oval port heads can flow just a well at above 4000 RPM as the rectangular without losing the middle and lower-end performance. Building a road course or street and strip engine then the oval port may be the way to go. Remember the old saying that bigger is not always better. WebOct 30, 2008 · The peanut port heads don't flow as well in the upper RPM range, but they were never designed to do that. ... Do some math including the peanut heads and what ya have to do then re-examine that head/cam package. "049 GM Heads Ported Stainless Valves 2.250 Int/1.880 exh Bronze lined guides Cut for PC Seals (heads are Open Chamber) New …
WebThe GMPP head (PN 12363400) with 300-cc rectangular intake ports (left) performs very similarly to the oval port head (PN 12363392) with 290-cc intake ports (right), if both have the same compression ratios. The oval port head has 110-cc chambers, and the rectangular port head comes with 118-cc chambers. Open or Closed Combustion Chambers
WebJan 3, 2009 · The 049's can be made to make some good power. . .in excess of 700HP, but to do this the port work and labor is generally in the $1000's to do so which for most … list of all campbell\u0027s soupsWebFeb 11, 2010 · hey guys everyone seems to agree 049 heads are one of best chevrolet heads around, but is that still true with out increasing valve size thanks Click to expand... images of happy birthday erin cakesimages of happy birthday daughter in lawWebAnd yes that statement does in fact refer to the "peanut" port heads. Corvettes and Chevelles both have used 353049 heads, which are a large oval port head. Also, lots of jet boaters seem to favor the large oval port '049' heads. Remember, increasing RPM is not the only way to make a jet boat go fast. images of happy birthday dianaWebNov 19, 2010 · Hi guys, building a 468 for street/strip use. Goal is a 3700 lb car into the tens. I have a set of 049ovals and my plan was 11/32 valves and some porting. what areas … images of happy birthday ginaWebMar 19, 2005 · For the size of your motor, and the cam you are running, I think you would be best off and cheapest off with a set of ported 049 heads. The AFRs are great, but the exhaust issue concerns me. The edelbrock heads are good, but you are looking at a 288cc port. That is pretty big for a 427 with a cam the size of yours. list of all careerWebMay 4, 2024 · I chose the 049 heads because of the exhaust runner, had the bigger runner than the 781. Chevy Factory BB Heads had a bad exhaust design to start. Anyhow my heads had 2.19 Intake, 1.88 Exhaust Valves installed. I had the bowls under the valve opened up as far as they could go. images of happy birthday handsome