Dodge 318 head porting
WebNov 16, 2024 · The PO did say the the heads had been machined but I think they may have just cleaned up the valve seats, and did not do much porting if any. The PO also said the cam was reground by the same shop. The car has a 625cfm AFB. Are the stock 318 heads restricting this motor more that the stock manifolds are? WebApr 10, 2024 · This 318 head will out perform a 340/360 head, give snappier throttle response and mileage because the air is moving quicker to atomize the fuel for a better more complete burn for more power. There is a point …
Dodge 318 head porting
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WebHedman Street Headers 79546. Headers, Street, Shorty, Steel, Silver Ceramic Coated, Dodge, 5.2L, 5.9L, Pair. Part Number: HED-79546. ( 1 ) Ships Directly From Supplier. … WebCylinder Head Material Aluminum (2,381) Cast iron (322) Billet aluminum (1) Get Results Intake Port Shape Rectangular (1,506) Oval (206) Square (106) Cathedral (77) Round (18) Ram Air IV (3) D-port (1) Get Results Intake …
WebOct 1, 2001 · Using the Ferrea stainless valves, the fully ported heads flowed 218.53 cfm on the intake side and 164.29 cfm on the exhaust at .600-inch lift, an impressive gain … WebThe 360 head swap to a 318 only helps when dealing with the pre-Magnum engines. In the Magnum line, there is no difference in port size. All the heads have the same port size …
WebNov 16, 2024 · Have the 360 heads shaved .020 or get new pistons is the best solution because the cost of the work on the 318 heads will be a couple hundred dollars and the porting time, if you do the porting yourself. Another solution is to hit the junkyards. I had several sets of 318 heads that were closed chamber that I have had in 73-74 Plymouth … http://www.mopar1.us/cylhead.html
WebOct 1, 2001 · Remove the studs, then bolt your headers down with quality fasteners; ARP stainless header bolts prevent corrosion since these bolts enter into the water jackets on the 318 Poly motors. The Dyno...
WebComparing LA cylinder head flow numbers. ... 051 318/360 1977-83 137 Magnum 140 Magnum R/T 308 360 Swirl? 1989-93 587 340/360 1973-74; 1976 596 318/360 1977-83 915 340/360 1970-72 974 360 1975-76 994 MP W2 Econo ... the evidence definitely indicates that factory castings with 2.02" intake valves and a really thorough porting job are able to ... new freeland officialWebThe 318-2bbl heads (4323302) used from 1985 on are a swirl port design with a closed (heart-shaped) combustion chamber design with a chamber volume of between 56 and 65 cc. The 4 heads I examined averaged 62cc in volume. The 302 head has 1.78 inch/1.50 inch valves and small ports averaging 54cc on the exhaust side and 118cc on the intake … new free mail order bride booksWebmyallstateconnection.com new freelancer gameWebPoly 318 Intake Manifold Porting Introduction As part of my larger engine-building series, I detail the process for porting performance A-block intake manifolds. The intake manifold can be modified for better flow, carburetor butterfly clearance, and … interstate specialty products incWebThe exhaust bowls are the most work on the Poly 318 head after the hardened seats are installed. All bowls except the exhaust crossover will usually have both a large dimple and groove (Figure 28). Using the ball … interstate specialty productsnew free malloc deleteWebMay 22, 2004 · One set came off a 318 that overheated 3 times so bad that it wouldn't run anymore till it cooled down except the 3rd time blew a hole in a piston. Those heads didn't crack after that. Magnum heads are really bad about cracking though. R ramchargertodd Registered Joined Sep 21, 2002 2,609 Posts #10 · May 18, 2004 interstate specialty marketing inc