TheViper

just wondering, would a crane 278-2 cam kill bottom end on a 283? i have a melling cam with 204/214 duration and 117LSA but i want more. i don't mind if i loose a little bottom end and i'l probably be putting in a higher stall convertor like 2000-2500 and a 700 trans with a 3.06 1st or whatever it has(i have a 200-4r right now with a 3.23 rear). according to DD2000 it wont hurt it too much below 3000 but picks up a lot more after that.

TheViper

what do you think of using rhoads lifters? how much would they help bottom end? i heard there noisy but i don't care and i guess its the only way i could get the better top end of a good cam and keep a little bottom end too. i've heard of people having good results with them also.

DTL504

iTrader: (1)

I have a 283 that im installing a Summit cam (204/214 420/442 112 lsa) similar to the one you have now. I just took out my Big cam (230/230 480/480 109 lsa) because it was a dogg and would idle @ 1000 rpm. I would not pull till about 2800 rpm's. This is with a 700R4, 3000ss and a 670 Holley Avenger, 1 5/8 headers.
Good luck if you still want to go bigger. IMO: I would stay conservative with the cam. Now If you really insist go with a little soilid Duntov 30-30 or 097 cam.

F-BIRD'88

The crane cam will have less bottom end torque than the 204/214
cam yu have now.
Keep the trans yu have now. Its a better trans overall.
The th700r4 has a big drop in gear ratio spread that the lil 283 isn't going to like.

Selecting the right stall speed and rear end gearing is critical.
If you're going to "Cam it up", don't wimp out on the converter or rear gearing.

just asking for a 2500stall or a 3000 stall is not going to get you the right converter. A 283 makes a lot less torque than a typical 350 which is what most off the shelf converter's stall speed is rated for.
A 283 will need a smaller/ higher stall.

A 283 with a cam like this should have a actual 3500 stall converter. a lockup converter is best for a th200r4.
You'd be best to get a custom built converter especialy built to achieve the right stall and tor4que multiplivcation behind your 283.

Art Carr is about the best source for high stall/ lock up converters for the th200r4.
Another good source for lockup converters is

Yank Converters

A 4.10or even a 4.56 would be the right rear end gear. You'll still cruise economically with a 4.10 while in overdrive with your th200r4.

TheViper

i guess i'l just wait and put in a 350, it would probably be cheaper than getting a high stall convertor and doing the rear end and have more power and a lot more torque.

BTW DLT504, how did your 283 run with the big cam comparred to the one you have now? what heads and compression do you have?

DTL504

iTrader: (1)

SBC 283-
3.955 bore/3.000 stroke. The big cam idle at 1000-1100 rpms, loss of low end torque. However she would spend the tires for a complete block w/o a problem. My heads are SBC fuelie heads 461 60cc w/ my home port & polish done in my garage.

https://www.thirdgen.org/techbb2/sho...hreadid=210749

I figure the compression about 9:1 with the flattop pistons 6cc, .025 deck, .015 shim gasket FPP-1094, gasket bore 4.100, and .040 quench.

Still in the process of changing the cam, well the cam is in and I have to bolt everything back together,, so I should know by next Monday after the Turkey is gone and the Saints beat the Redskins.

Then in the spring I will be installing what in the sig: