Bowls blended, and intake ports gasket matched. Note intake Dimensions Std = 2.17 x 1.13 MW (max wedge) = 2.58 x 1.35ī1-BS(A) - This is how the head came from Koffels Place. From 1968-1978 were large valve, but were an open chamber design.
The rare 1967 pieces were large valve, but closed chambered. Most heads from 1958-1966 had small valves and were closed chambered (except special pieces like the Max Wedge or 300J). This allow for very low compression, thus low heat. Industrial engines had a water port at the end of the head and a 3/4-inch spacer cast into the bottom of the head. The 1958-1962 cylinder heads had a 4-bolt valve cover (even the Max Wedge). MOPAR The Chrysler Big Block began life in 1958 and lived until 1978. Raised and greatly enlarged Intake and exhaust ports This included the Dodge Super Bee, Plymouth Road Runner as well as the Plymouth Sport Fury GT.Exhaust Seats: 1.900", 1.94 (stock), 2.00
The “six pack” setup pushed the horsepower up to 390 and was used in many of the most popular Chrysler, Dodge and Plymouth muscle cars of the late 60s and early 70s. This allowed the car owner to get better gas mileage on the highway as well as maximum performance at the drag strip. This setup was 3 dual carburetors that were designed so that the center carb fed the engine when cruising down the road and then when the customer really wanted the extra power they could simply stomp down on the gas and the other 2 carbs would open up and give the engine everything it needed. The 440 was definitely not as powerful as the 426 HEMI but considering it could be purchased for half the price of a HEMI there were a lot of buyers ready to purchase this Mopar powerhouse.įrom 1969 to 1971 the 440 got even better with the introduction of the “six pack” carburetor setup. The Chrysler 440 V8 engine was built from 1966 to 1978 and was the last of the Mopar engines that were over 400 cubic inches. So Chrysler decided to raise the bar another notch to fight the competition by developing the 440 V8 engine for 1966. Ford had already released their 427 in 1965 to do battle with the already very popular Chrysler 426. With the success of the Chevrolet 409, GM was planning to unveil the 427 for the 1966 model year. In the mid 60s the muscle car battle between the Big Three automotive manufactures was getting heavy.
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