wats up im about to buy a 1968 455 oldsmobile motor, block casting number 396021F, c code heads for $350.
Rite now I have a 307 but this swap should be fairly simple.
When i go and check this motor out what are some things I should look for?
This motor looks complete minus the carb and some brackets but ill be replacing those.
Any info would be helpful. TIA
Are you going to rebuild this engine? Tear the pan off and look at the bearings. Will your transmission take the extra torque? I did swap before, but I ripped out the heater box and put in a block off plate. Maybe the heater box would have to be modified because the taller deck. Otherwise its a straight forward swap, the only thing you might have to worry about tailpipe emissions.
Did he send you a link showing you it runs? Still, That is pretty cheap for a motor like that. Torque Monster in the stock mode..
It still might be worthy for a rebuild. Oh yeah I'm sure you know.. don't forget to get a bigger trans, I don't think that 200 will hold up very long...
tose "C" heads might have the big 2.07 intake valves ....
those 68 455 had 10.25 to 1 CR .....but soft valve seats .
those 455 were durable , put a little cam in there , dual exhausts , youll get a torquemonster !
the 200 transmission wont last a week ! if in good condition ( rebuilt) sell it before it self destroys !
You guys are telling him to get a different transmission without knowing what his goals are for the car? Depending on your goals for the car and your budget it may very well be worth the extra money to have a well built 200-4r over my beloved but somewhat obsoleted 3 speed th400/th350. I am making an assumption there because maybe you meant 4l80E or something else. As an example http://www.extremeautomatics.com has hi performance street built 200-4r for 1,395 guaranteed to 10.90s and warranted for 1 yr. More efficient, better gearing, overdrive saves your quarter mile geared car from excessive wear (at minimum) and can save a lot of fuel and make it usable & enjoyable for more than cruising the local street lights.
BTW I used one behind my 509 powered Cutlass. Yes I added the billet forward drum/shaft because of the torque & drag radials. Car ran 110 mph in the quarter at 3,840lbs with me. With 3.42 gears is would cruise the interstate at 75mph at about 2,500 and actual got 17.0 mpg instead of maybe 12. I had it for about 9,000 miles went thru a set of drag radials and could not have been more happy with it. Will a generic one hold box stock of course not.
Also for 442nAZ check out this link http://www.robertpowersmotorsports.com. Bob ran a best of 12.3 at 110 with his 455 Olds powered Cutlass and got over 15 mpg with more to come before the car was stolen.
dogshit ! I think you dint get the point or, maybe it`s me ....
I dint read nowhere that he was ready to suit up his 200r4 ( does he have one or a plain 200)
a stock 200R4 is worth more in good condition then ruined behind a 455 ....
do you really believe that a 200r4 can survive the torque of a healthy 455 ?
you may have a fairy story but normaly reality is otherwise ....
dogshit ! I think you dint get the point or, maybe it`s me ....
I dint read nowhere that he was ready to suit up his 200r4 ( does he have one or a plain 200)
a stock 200R4 is worth more in good condition then ruined behind a 455 ....
do you really believe that a 200r4 can survive the torque of a healthy 455 ?
you may have a fairy story but normaly reality is otherwise ....
He said they will hold up after being built up with better parts, not stock. Yes, it is reality, because himself and many others have run them behind torque monster big blocks with no problems.
definitely , but after $$$$$$$$$$$$$$$ invested ,not stock: no way ...
my point is: is he ready to go thru this or just put another transmission for the time being ....his decision !
bigdan, " I think you dint get the point or, maybe its me" Its you. Not hating on you brother but you have to read the posts more closely.
Your questions are probably already satisfactorily answered in my first post but to answer them another way. Buying a professionally built up say th400 would be cheaper than the 1,395 example I gave. (Bet you never bothered to check the link out) What I was talking about is your second point; "his decision" don't tell him to sell it and get a "bigger transmission" unless you know his goals. And that depending on your goals and budget it may well be worth the extra cost between the example I gave (guaranteed to 10.90s warranted for 1 yr for 1,395) and that of a pro built bigger transmission.
Nobody said anything about the stock generic 200-4r. BTW check out the price of the pro built stage 1 th400 on his website.
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