The Jalopy Journal
Discussion in 'The Hokey Ass Message Board' started by yblock292, Mar 4, 2010.
got an early carbureted 300 six, will a 91 AOD bolt up to it if not what AOD will?
I dunno if you know about fordsix.com, quite shure you get an answer there,everything about inline sixes!!
hey kool thanks!
I think the sixes and the small block ford have the same bolt pattern. The AOD would be 6 bolt only, but you might find a 5 bolt pattern on early sixes. I am doing this from memory and do not have the information in front of me.
I just installed a 300 inline into a 1965 Ford F100. I found lots of answers to my questions on inline engines on ford-truck.com (also comes up on a search for Ford enthusiasts). They have an "inline" forum I don't know about automatics, I put a granny 4 speed in my truck. Have fun.
Needs the correct flexplate, but the bellhousing mounting pattern is the same as a 6-bolt 289/302/351. I.e., almost all will fit.
if taking it from a 302 truck u will need the flexplate too have had bad results for not doing that but it will bolt in
great thanks guys!
I know 240 has neutral balance flexplate don`t know about 300 but 302 & 351 are not neutral balance and will shake your engine to pieces.
You might want to double check, but I think that the early 240 and 300 may have had a different bell housing. I think the change happened in the mid 70's but I'm not 100%. I think my dad ran into that on his project.
I've done AOD behind 300. Need 6 cyl flexplate as neutral balance. From above post as to difference in 240 and 300, only thing I remember is 240 was 9-1/2" clutch and 300 was 10".
yes i was wrong on the flexplate u need the 300s flexplate for engine balance (seeing it doesnt a a balancer on it) sorry for that i forget things sometimes
and if your 300 is an 80s model it will work they were carb from 65 to 86 the just call ford dealer and give them the block number they can give you the year of it
Don't forget to add the TV (throttle valve) cable and get the line pressure in the trans adjusted correctly. AOD's will burn up in a hurry with incorrect oil pressure. Lokar sells the cable. I have an AOD behind my 300 six (see avatar). Works great, and runs strong.
All 240 / 300 sixes came with a large diameter flywheel - 164 teeth, I think. Some passenger cars like Mustang use a smaller, externally balanced flywheel (157 teeth?) and bellhousing even though the bolt patterns on the six and small V8s are the same. So if the AOD has a bell that can accommodate the larger 300 neutral-balanced flywheel you are good to go. If the AOD has the smaller pass car it gets more complicated. You will need a smaller flywheel. A Granada with a 250 six / C4 flywheel will fit the 300. Just make sure it it neutral balaned. It will require the smalled bell block plate to relocate the starter motor hole for the 157 tooth wheel. Good luck. We made a similar setup - except using a C4 - fit a Pinto.
kool thanks you guys, gonna try stuffin this in my chopped 51 shoebox
All 240/300 Fords from 1965 to 1996 have the 6 bolt SBF pattern. I am fairly sure AOD's only came in one case pattern, the 6 bolt and there is only one size of flexplate, the 164 tooth. There may be a modular V8 pattern AOD but early modulars used the SBF pattern and was switched around 1994 thes same time the AOD was dropped. The similar looking AODE/4R70 came in either the SBF pattern (two starter bolts) or the 4.6/5.4 modular pattern (three starter bolts).
Try and find a set of 95 fuel injected F150 exhaust manifolds, they are like a set of headers compared to the early log manifold
And check out my home-built 3 x 1 intake for the 300 at www.inliners.org tech tips forum.
I need to bump and old thread for a new project.
I have a 240 c4 combo in my new shop truck. I'm looking to swap in a 300 backed by an AOD.
Will the flex plate off the 240 work with AOD? If not, what flexplate do I need?
Thanks in advance?
The 240/300 has a neutral balance flex plate, otherwise it's identical to a SBF flex plate.
The bottom line is, it should work.
You know how Ford stuff is
If the 240 plate does not work.... get a later model AOD plate for 95 F150 4.9 AOD....
Save those 240 heads. They are higher compression than later model 300 heads.
Take a 302 v8 flex plate and knock the balance weight off. https://www.summitracing.com/parts/...MIxu_X-vGY3wIVAzVpCh2vkwBTEAYYAiABEgJtXfD_BwE
I would be concerned about the difference in flange depth between the C4/240 flex plate vs the AOD plate. I am not saying there is a difference, but AOD's run a thicker torque converter because of the lock up feature and dual input shafts. I ran into this problem replacing a C6 with an AOD. The AOD torque convertor bolts to the C6 flexplate, and the engine bolts to the trans, but the C6 flexplate pushes the AOD torque convertor to far into the transmission. This results in a burned up trans pump real quick, and is not good for the crank bearings either. The C4 may have the same situation.
Ford put a ton of AOD's behind 300's in the 80's and 90's. Just go to your local part store and pickup a new flexplate like F-ONE recommended. Well worth it if you don't have to pull the engine or trans a 2nd time.
I'm not sure if Ford changed teeth patterns on the big sixes through the years. I know SBFs had different teeth pasterns through the years. Whatever flex plate you get you will need to make sure the starter is compatible...
Yes it will fit
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