another disappointing race: 305 crossfire vs a 3000GT, of which i thought was a non-turbo, oh well got my butt kicked.

Which in turn lit a fire under my *** and forced me to spend some money. I had been thinking about doing a 383, then changed my mind to the 406, 383 just wasent big enough.

then after being beat again by a different 3000GT of the non-turbo variety, i deceded to visit the local auto zone and complain about my 305 to a few buddies, the told me to look into the current car craft, and i was hooked.

I caved in and bought a 427 motown small block short block

so that is my current project for my 82TA, yet another 3rd gen claiming its revenge!

What do you all think?

~Nick~

 

I think with the right combination of cam/heads your still going to get beat since you will have zero traction At least you will now have an excellent base to start you build with...just dont forget about all the things behind the motor that will soon need replaced since i promise the extra power will bring out every weak point in the car

 

sounds to me like you should stay away from the 3000GT's and you would be fine...LMAO

sounds like you have a good start thou keep us posted as to what all you do

 

Nick, what rotating assembly components did you go with? What are you planning on feeding it with - Carb, Miniram, HSR etc? What heads are you thinking of going for?

Best of luck with things!!

 

I had bought the short block option that world had. Which is all forged components, i had opted for the dish pistons. The crank is lightened and it comes with H-beam connecting rods.

I plan to run a Holly double pumber with mechanical secondaries rated at 850cfm.

I am using hooker supercomp headers #2210.

as a matter of fact its ime to go work on the engine right now!

~Nick~

 

850dp might be a little much, you might do better with a 750dp on that engine. Usually, you have to go somewhat smaller when you have mechanical secondaries if you wanna keep it tame enough to drive on the street.

 

It's all in the tune Now that I found the heat range I needed for plugs, I cant ask for anything better as far as "street" characteristics.

That 850DP will be about right, I would say the 950HP, but that only wet flows 830cfm, so his will truley flow the 850cfm. Given the bigger cubes if the heads/cam are choosen for max umph he's gonna need that extra cfm. Then it's just a matter of working out the PV, jets, timing, and plug heat range-it'll be good to go.

 

Thats true, but it looks like he's also running an automatic. Manual secondaries and autos can be tricky. Its very easy to over-carb with a mechanical secondary carb, and if he's running an automatic, that could cause problems, like a very 'soggy' low end, even with a 427. Thats why I suggested he try something a little smaller if he wants to use manual secondaries.

Someone should get Five7 in this... his '57 has a 396, auto(?) and a manual secondary carb, so he would have some experience to share I'm sure.

 

It would also depend on the planned RPM range of the motor. I have seen dynotests of a stroked BBC (489) , mild combo, made peak power at 5700, made best power with the 750DP. Intended usage also has a lot to do with it. On a mostly street driven car with streetable gears and stall and an engine that revs to around 6000rpm, I would go with the 750DP. (I like DP carbs) I dont think he is giving up too much with the 750, even tho the 850 may be slightly better near redline.

 

I will be running a very beefed up 700R4 out of a truck, i am using a 2800 stall with a 4.11 gear in a ford 9inch.

~Nick~

 

I am thinking, the 4.10 gear might be a little much with this engine with the low first gear the 700r4 has, if You run a 26" or 28" tire... IMO, something like a 3.70 or
something close to it would be better. Also, IMO, the 700r4 will not last long if You shift into OD in the 1/4 mile with full throttle all the time... Just my thoughts,
I would like to see what others would think about that...

 

as far as the 1/4 goes, it wont shift into 4th at all, it will be in the middle of 3rd gear when it passes the 1/4 mark.

~Nick~

 

I don't think he'll be giving up any noticeable amount of top end by using the 750, but would gain a considerable amount of lowend and streetability over the 850, especially if they both have mechanical secondaries.

 

Displacement does not equal horsepower.

 

We are not talking about horsepower, just CFM of the carb.

~Nick~

 

I understand that.