Hey guys, I need some accurate input here. I am working up a 200ci inline six. I want to put a 250 crank and "stroke" it up for more power. I know that I will have to line bore the crankshaft journals, but I do not think I can use the rods from a 200ci or a 250ci. I am wondering if I could use the rods from a 170ci. Please, tell me if I can or not. Jeff
You should join or search the forums at http://www.fordsix.com ... they have all kinds of Ford 6 cylinder info ...
The crank flange on a 250 is not the same diameter as the 200. Therefore it will not fit the back of the block flange. This issue was researched quite some time ago with emphasis on replacing the 200 flexplate with the one from a 250. The bolt pattern is not the same nor is the radius. Some have redrilled the flexplate and used spacers to place it at the correct location to accomodate the starter. Also, a dual pattern 200 which started in 66 would be required along with the use of the outer bolt pattern for a larger bell housing
That cracked me up Captainmack! I know what you meant, but wow! 7 bolt mains would be something. "Forget that wussy 4 bolt main Boss 302 crap. My 200 is a real screamer and Ford designed it with 7 bolt mains. It was all part of the limited edition 72 Maverick Super 6 racing package you could order in Spring of 72. " Overactive imagination this morning, what can I say. And yup, zombie thread.
Y'all can keep your lil small block 302's....(small....) I like the inline 6 design and low RPM torque of 240 ft pounds at 1600 RPM in my 2- fitty I6...for a milage road car. When I want to generate a bunch o' HP I'll stick with my big block MOPAR. (big...) THe 302 is sooooooo common... and just doesnt really fit in a Comet /Mav. too cramped.
No offense meant. The 6 cylinders are almost bullet proof - great engines. What I was chuckling about was the 7 bolt main comment. Yes, there are 7 mains,but they are only 2 bolts for each main.
Even though you answered a 4 year old thread, I can't let this one go... Have you ever looked at a 302 in a Comet? They fit PERFECTLY. Do a 351c in a Comet and then you'll see "cramped". Next time you answer a question on a board... look at the date.
No offence taken bro. I love this Forum....there is more enthusiasm and opinions and involvement here than on the Dodge Coronet registry (I have one) by 10 times. I post replies to old threads because I've posted questions long time ago and still want opinions...answers... I like my cars as highway warriors, I'm not into dragging. The 302 V8 is still just only 50 cubes bigger than a 2 fitty. Doesn't hold up to my 440 Mopar... and when I'm going down the road a 75, being 45 years and lucky to have survived my car stunts when I was a kid I dont really want to go that much faster...just pull the hills here in California.. I can and do change my oil without my knees ever touching the ground...on the six you can reach everything so easily..plugs, etc. It's all good.. lot's of ways to get down the road, right?
