Cylinder Heads
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Flow Testing the "Log" Cylinder Heads
This tech article is a "work in progress". Information will be added as it becomes available. Over the past few years we've flow tested several Australian 250-2V cylinder heads, as well as our own Aluminum cylinder heads. However we've always wondered how the cast iron "log heads" stacked up...
Demystifying Compression Ratios: Understanding Static vs. Dynamic
Optimizing compression ratio is crucial for maximizing performance in performance engines. However, it's essential to distinguish between Static Compression Ratio (SCR) and Dynamic Compression Ratio (DCR), as SCR alone provides...
The primary goal in designing and developing a new cylinder head, is the reduction of total ignition advance, while simultaneously increasing the air flow capabilities and chamber efficiency. By utilizing the best engineers and pattern makers, foundries and machinist, as well as the latest...
If your building a performance motor, one of your first thoughts was probably 'How high should my Compression Ratio (C/R) be?" If so, you need to know the difference between Static Compression and Dynamic Compression, as Static compression is meaningless in itself.
First, lets talk about the...
The charts below were calculated using Virtual Engine 2000's Cam Utility Program. The charts list both Static and Dynamic C/R's for a 200ci engine with a zero deck height, using varied chamber sizes and valve timing (intake close). Calculations were computed using a Felpro head gasket which has...
Original Source: https://www.fordsix.com/archive/www.classicinlines.com/HeadSwap.html
First, let start by saying that all 144, 170, 200, & 250ci heads are interchangeable.... and while the valve size, chamber size (cc's), and intake/port volumes (cc's) changed over the years, all of the small...
This tech article is a "work in progress". Information will be added as it becomes available.
Over the past few years we've flow tested several Australian 250-2V cylinder heads, as well as our own Aluminum cylinder heads. However we've always wondered how the cast iron "log heads" stacked up...