saouad

and would i be able to do this after the engine is already installed so i can save some money to do this?

63mako

http://forums.corvetteforum.com/c3-t...406-build.html
There are a hundred ways to build an engine but the basics are pretty standard. CI gives you torque, lower gearing and higher compression allows bigger cam. The bigger the cam the less streetability and higher in the powerband your power. Head flow = power potetial. Everything is a compromise.
One thing not addressed is those 461 heads have no accessory holes for mounting your C3 accessories. By the time you figure out how to mount them and buy the pulleys and mounts to make it all work you could sell those rebuilt 461 heads and 292 cam and buy a set of decent aluminum heads and drop the compression and cam size so you can use a reasonable street convertor and your factory accessories, brackets and puillies.

saouad

if i change the cam to cam in the 230 duration @ .050 range. i will be able to use a 2200 stall converter?

saouad

I asked the builder about the accessory holes already and he said he had the brackets for the water pump, ac, power steering etc.

63mako

Yes with a 406. The problem will be if your compression is too high to run the smaller cam with iron heads detonation will be an issue. The bigger CI and 3.70 gearing will tame the cam some. Go with a good 2400 stall and compromise since you already have it all done. If you want to upgrade after you save some money you can buy heads and cam lifter kit to compliment the 2400 stall.

gerry72

Similar to the L-82 cam but without knowing all the specs, it's probably going to be fine at 2200 stall.

Why are you fixed on those heads? Do they have hardened seats for unleaded fuel? Is the builder the one pushing those heads? You are really making a lot of compromises and getting nothing in return.

saouad

Alright so just drop in a 2400 stall? no need to do anything? i understand i am compromising and i appreciate this information! have a particular brand you suggest?

saouad

they guy loves the heads i have no clue why, he just keeps saying how awesome the engine runs with this combination.

saouad

Alright so just drop in a 2400 stall? no need to do anything? i understand i am compromising and i appreciate this information! have a particular brand you suggest?

63mako

I would call Art Carr and give them all your info and get a solid recommendation from them. They do custom convertors only and with your combo and use I would use their experience and spend a few bucks more. It will be worth it. Lean more toward streetability than drag racing results. You can do the same thing with B&M and compare the recommendations. I rebuilt my TH400 with the B&M Transkit and a recommended B&M convertor about 10 years ago and my stock L48 W/3.08 would roast the tires on launch and scratch 2nd gear for 2 ft.
One thing for sure with a car that sees 90% street use you will not be happy with an off the shelf 3500-3800 stall convertor no matter who makes it.

BKbroiler

You're running low 12s with a stock converter? What kind of 60 ft times and mph are you running?

garygnu

I run a 2500 stall with a cam that is 241/249 at .050 ,it is in a 427 sbc.get better heads if you can.torque brakes stuff ,not HP.

saouad

so i just called B&M and the suggested the whole shot 2400 stall converter thanks guys greatly appreciated.

saouad

GM Chevy 10" TH350 TH400 2300 - 2600 stall Torque Converter (good for 500hp). is that any good? and should i get lock up or no lock up style converter?

palmbeachvette76

I have a TCI Breakaway 10" converter and it stalls in the 2400-2600 range with very nice street manners. Drove the car round trip 75 miles to work and back today since the world is ending tomorrow. I've had the converter in the car for a little over two years and 3-4000 miles along with the TCI TH350 Street Fighter trans.

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63mako

Yep, Go with the B&M nitrous holeshot 2400. It is a higher quality convertor that is designed for more HP. Extra 40-50 bucks. This is what I was going to link to before I posted to call them.