Featured articles
One of the most common problems with the small six is blown header gaskets and/or exhaust leaks. However they can be minimized by following proper installation procedures. The use of locking bolts may help, but even then, leaks can and will occur if you don't torque the header flange bolts (or...
Selecting the Proper Valve Springs
Valve springs are one of the most critical components of your engine. It is very important to match the camshaft and it's potential RPM range with the correct spring rate. We will attempt to explain it in this article, but first lets go over some valve spring...
How The Stock Load-O-Matic Distributor Works
Here is a little clarification on how the "Load-O-Matic" distributor works, along with the infamous "Spark Control Valve" (or SCV). Not only is it important to know how they work, especially if your planning a carb swap, but how they work in...
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...
Being able to "read" a spark plug can be a valuable tuning aid. By examining the insulator firing nose color, an experienced engine tuner can determine a great deal about the engine's overall operating condition.
In general, a light tan/gray color tells you that the spark plug is operating at...
FORD 9-INCH REAR ENDS
A number of years ago, I set out to search the salvage yards in an effort to find a 9-inch rear end to go in my '68 Mustang. I knew that my up coming plans for my car were going to be way beyond anything the weak 8-inch rear end could continuously hold up to. After that...
SMALL SIX SPECS - 144/170/200/250ci
General Specs
YEAR
CI
Chamber
Intake
Exhaust
Log CC
Adv HP
Adv TQ
60-64
144
44-51
1.467
1.266
850
90
138
61-65
170
48-53
1.522
1.266
890
105
158
65-72
170
48-53
1.649
1.380
890
105
158
65-69
200
51-53
1.649
1.380...