How do you guys hook up your 347s-427s?

[steel1212]

i was looking at speed-o-motive's site and was checking out their 347 turnkey for 6k,thats dynoed and tuned, with 465 hp and about the same torque. i was just curious how you put that to the pavement in a 2800 pound car. Then there are those of you with 427s and what not, i just don't see how you don't roast your tires the whole 1/4 mile

Basically what I'm getting to is I would like to have that 347, but I don't want to be roasting my tires all the time on the street.

 

[gp001]

That's why anytime I see someone post about building some super helacious engine combo I start the "Chassis, suspension, brakes, etc.." mantra. My 347 is fairly wimpy and I can't plant the power. I would hate to see some of these other setups

 

[bnickel]

hell i have a slightly modded 351w (standard bore even) and i can't get it to hook even with 275/50-15's in the rear with a 3.25 gear, would probably help if i had a trac-loc though yep mine is a one-liner

 

[washMO66]

Hook on the street? that's funny. If your build a 347 right and you stick the biggest tire you can find under a stock suspension set up, it ain't happening, anyone that tells you it's possible, well, I need to talk to them so they can enlighten me.

Tub it, tub it wide and put the stickiest no lasting tires your can find that are still street legal and pray. If that isn't your style, smoking the tires effortlessly, like at high rpm all the way through second gear, it's not such a bad thing, sort of keeps you on your toes actually.

The only place my 347 remotely hooks is at the track, on slicks with 10PSI and a really good 60' section. If I was launching at anywhere near my torque peak I would be out of tire and looking for traction.

I'm all motor and I can put my car in second gear (C4) w/ 3:70's 2500 stall from a dead stop and smoke the tires instantly to redline. That's 245 COMP t/a's on the street.

If anyone in here has a built 351 based stroker motor in a early body, they are not hooking either if their motor has been put together correctly.

 

[washMO66]

Hook on the street? that's funny. If you build a 347 right and you stick the biggest tire you can find under a stock suspension set up, it ain't happening, anyone that tells you it's possible, well, I need to talk to them so they can enlighten me.

Tub it, tub it wide and put the stickiest no lasting tires your can find that are still street legal and pray. If that isn't your style, smoking the tires effortlessly, like at high rpm all the way through second gear, it's not such a bad thing, sort of keeps you on your toes actually.

The only place my 347 remotely hooks is at the track, on slicks with 10PSI and a really good 60' section. If I was launching at anywhere near my torque peak I would be out of tire and looking for traction.

I'm all motor and I can put my car in second gear (C4) w/ 3:70's 2500 stall from a dead stop and smoke the tires instantly to redline. That's 245 COMP t/a's on the street.

If anyone in here has a built 351 based stroker motor in a early body, they are not hooking either if their motor has been put together correctly.

 

[steel1212]

Yeah, tubbing isn't an option, flaring the fenders a little maybe but no tubbing. So basically the track is the only place a stroker is going to hook up good ok, so how are their street maners? I mean that engine will have 465 flywheel and about 400 rearwheel. Am I going to be spinning the tires just trying to take off in first, (will be a g-force before this engine)?

I have every intention of doing the tranny, rearend FIRST, as well as disc all the way around. I'm just getting ideas in my little noodle

 

[Ronstang]

The key to getting as much power to the ground on older leaf spring cars is a trac-loc or locker rearend and a good traction device. The best traction bar I have ever seen or used is the Cal-Trac available from:

http://www.calvertracing.com/

These things are simply amazing. We used a set in a 70 Mach 1 with a 460 bored and stroked to 500 ci. This car made over 600 hp at the wheels. On ET steets the car has pulled the front wheels off the ground about 2 inches on a normal street. I wouldn't have believed it if I didn't see it for myslelf. Witnesses couldn't believe it either but all that saw it were amazed. Even with normal radials the amount of traction you will gain is considerable and these are now the only traction bars I will run on an old car if I put a decent engine in it.

 

[fastcoupe68]

The key to getting as much power to the ground on older leaf spring cars is a trac-loc or locker rearend and a good traction device. The best traction bar I have ever seen or used is the Cal-Trac available from:

http://www.calvertracing.com/

These things are simply amazing. We used a set in a 70 Mach 1 with a 460 bored and stroked to 500 ci. This car made over 600 hp at the wheels. On ET steets the car has pulled the front wheels off the ground about 2 inches on a normal street. I wouldn't have believed it if I didn't see it for myslelf. Witnesses couldn't believe it either but all that saw it were amazed. Even with normal radials the amount of traction you will gain is considerable and these are now the only traction bars I will run on an old car if I put a decent engine in it.

Amen to that, Cal-Tracs are the way to go!!!

 

[washMO66]

Street manners are just fine but I'm sure that will be dependant on your specific build. I run the XE274HR, single plane intake with a mightly demon and it's just fine in town or on the highway.

I have a friend with Cal-tracs on his Mach 1 and while he has seen some improvement it hasn't solved the problem. You can get quite a bit more tire under a 70 Mustang in comparison to a 65-66. I ran ET streets last summer (10.5X15X26.0) and while it was a marked improvement over my radials it did not suite my on the street driving style not too mention they just don't last long on the street. I may try some of the new MT drag radials next, they look pretty sticky and should last longer than the ET Streets.

I totally agree with Ronstang on the trac loc comment. I run a Currie 9" with Detroit true trac and it has been great. You'll want to beef up those leaf springs as well 4 1/2 to 5 leaf.

Good luck, you'll enjoy the torque and instant power of that stroker...