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Small Six Specs - 144/170/200/250ci
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...- 1966Mustang
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Header Installation Procedures
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... -
The most common mistake when building a performance motor, whether it's a V8 or an inline six, is selecting a carb which is simply to big (or over-sizing the carb). Don't fall into this trap, bigger is not better.......
CarbChoice
https://www.motortrend.com/how-to/classic-mustang-inline-six-swap-2/
Original https://ciarchive.fordsix.com/250Swap.html
250Swap
NOTE: All Inquires about Classic Inlines should be directed to Vintage Inlines. Classic Inlines is no longer in operation. There is a site with the same name that is not associated/affiliated in any manner with fordsix.com or vintageinlines.com.
This page is for historical purposes only. If...
When Ford introduced the Mustang in April of 1964, the base powerplant was the Falcon's 170ci six with 101 horsepower and 156 lb-ft of torque. Later that year, in August, Ford updated the Mustang's engine line-up with the seven main bearing 200ci six as standard equipment. Both the 170 and 200ci...
This has been a great engine! It has tremendous torque, gets terrific gas mileage, and has been as reliable as an anvil. The only noticable flaw has been the inability to run in extremely hot weather (95+ degrees) on pump gas due to detonation caused by the high compression ratio. We've been...
I met Travis in August of 2001 on the Ford Six Forum. It didn't take long for the two of us to develop a father-son type relationship, only better in many ways. Travis was a bright young man who had just moved to Mesa. He lived with his father, step mother, and little brother, and was attending...
Spectre Performance purchased a 74 Maverick, with a 200ci inline six to use as a project car and test bed for their new EMS-Pro fuel injection controller. The motor only had 20K miles since it was rebuilt, but had a severely scored piston in one cylinder. This was causing major blow-by and a...
The 250 Falcon engine with integral manifold is limited in performance due to the restrictive nature of the cylinder head. To get the most out of it requires radical modifications to improve both intake and exhaust flow. Several rodders have resorted to "hacking off the intake and exhaust" and...
UPDATE 9-7-07
Classic Inlines is developing an aluminum head for the Big Six (240/300ci) Ford inline six engine. At the present time, we are having the pattern maker re-work the patterns as we were not happy with the results. For some strange reason, they made the head similar to a shoe box...
Forgotten Growl: The January issue of Muscle Car Enthusiast covers the history of the Arvinode Exhaust Systems, which is being reproduced by Waldron's Antique Exhaust. This exhaust systems is also being offered to inline enthusiast exclusively through Classic Inlines. In this article, you'll...
Six-Cylinder Performance & Economy Guide This tech article was printed in Hot Rod's Mustang Magazine, Volume #3. The article covers the popular Offenhauser Triple 1V modification, an Autolite 2V log conversion, the Duraspark II distributor swap, and other methods of increasing horsepower and...
Thoughts on Performance Building The 200/250 Ford Six Cylinder Engine
Why, yes, I always shift at 8000:
The 200/250 engine has a bulletproof 7-main bottom end that has ample strength to support fairly high levels of power and rpm. The stock oiling system is not bad at all. And the inline six...
Inline Power Potential was rewritten and published once again in Muscle Car Review. We had no idea the article was being reprinted, until our phone started ringing off the wall shortly after it hit the stands. I can't tell you how much we appreciate the editors at Primeda for publishing these...
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...