Roller cam pushrod length must be checked!īest engine range 451 cu. 440-1 or 440-C heads with Indy valves, no head or block milling we use the following pushrod length: If ya want more than 1300, do a HEMI 99'. If ya want less than 600, do an iron junk. Intake volume 110cc bigger than stock head Edelbrock Indy 440-1 Indy 572-13 Indy 600-13 B1 B1-MC B1-PSO Predator These heads will cover you from 440 to 650ci and from 600 to 1300hp N/A depending on how serious the build. Machined for stock rocker shaft or Jesel 440-1K is everything between block and carb The original B-1 heads I was referring to flow well north of 425 cfm with. If you want more than 800 hp then youll need to step up to an aftermarket block and then go with a set of big heads such as Indy -1, 572-13, or switch over to the B1 heads. NOTE: 440-C (Cast Iron) same head as 440-1 aluminum except for weight, engine will weigh 80 lbs more when built with 440-C Heads. The stroker crank pumps 512ci in a 440 block. When selecting the 440-1 most people buy it in kit form 440-1K, replacing everything from the block to the car. 650 HP to 850 HP with one carb, it makes great torque and has low shift points. it makes the perfect kind of engine a bracket racer wants. The best use of the 440-1 is a 451" to 500" bracket engine. This is still the best selling package at Indy Cylinder Head transforming stock blocks and cranks into serious street/strip machines. If there this will be the third number in the cell.The place was Columbus, Ohio 1992 AT THE NATIONALS, Indy introduces the 440-1 head and manifold combination that soon became the most popular power for the 440 wedge engine. Check the exhaust / intake flow ratio.For street engines airflow at 0.400 inch lift is a good place to evaluate flow.Looking at flow numbers near or above max.Bigger is not always better (Highest flow numbers and/or largest port volume).If present this will be line 3 in the average column. I am thinking about purchasing a set of 440-1 heads max wedge intakes 345 ccs. When calculating the CFM flow per cc of intake port only the highest intake flow number is used.If present this will be line 2 in the average column. When calculating the average exhaust / intake ratio there needs to be more than 2 flow numbers, and the number of intake and exhuast count must be equal.When calculating the average number, flow at.Cylinder Heads Flow Data at 28" H2O Cylinder Head Flow Data At 28" H 2O
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