Bigblock in the twisties

Gregsn2toys · 07-05-2002, 10:27 PM

Im thinking of taking on a project, but Id like some info on what the outcome is likely to be before I throw money away. Looking into stuffing a 429 that is still yet to be built into a foxbody mustang, likely mid to late eighties. Prolly keep it an auto too. How bad is this thing going to handle? I like straight line acceleration but I still want to be able to take a corner without severe understeer or oversteer.

drudis · 07-09-2002, 09:55 AM

You're outta luck.

With a bigblock, you'll have extra weight to deal with, on an already noseheavy car. If you modify the suspension for dragracing (light springs) you'll have a real tough time driving any corner fast. If you do stiff springs to support the car, you'll do ok, but no canyon-carver...

Decide on what you wanna build, then make a plan, and design the whole car to that plan. Dont peicemeal parts of the car for multi-designs, you'll end up unhappy.

RoadWarrior · 07-11-2002, 12:13 AM

Drudis is right. Unfortunately with cars you usually cant have the best of both worlds. Its one or the other. If you have a car set up to drag you wont be able to handle as good as someone who has a road race car. And unless you can lighten up the front end and the 429 up alot your going to be plowing into corners.

82 GT · 07-14-2002, 10:11 PM

You would have to totally re-design the chassis and suspension in order for it to handle the way your're looking for.
The chassis would have to be designed for the engine to set back further to compensate for the ectra weight. Then your talking a beefy suspension to handle the added weight and traction problems you would have with all that torque.
I am not an engineer but that would be my guess as a start.

07-05-2002, 10:27 PM	#1
Gregsn2toys Registered Member Join Date: Jul 2002 Location: Tulsa okl Posts: 14	Bigblock in the twisties Im thinking of taking on a project, but Id like some info on what the outcome is likely to be before I throw money away. Looking into stuffing a 429 that is still yet to be built into a foxbody mustang, likely mid to late eighties. Prolly keep it an auto too. How bad is this thing going to handle? I like straight line acceleration but I still want to be able to take a corner without severe understeer or oversteer.

07-09-2002, 09:55 AM	#2
drudis Moderator Join Date: Dec 1999 Location: Livonia, MI, USA Posts: 1,194	You're outta luck. With a bigblock, you'll have extra weight to deal with, on an already noseheavy car. If you modify the suspension for dragracing (light springs) you'll have a real tough time driving any corner fast. If you do stiff springs to support the car, you'll do ok, but no canyon-carver... Decide on what you wanna build, then make a plan, and design the whole car to that plan. Dont peicemeal parts of the car for multi-designs, you'll end up unhappy. __________________ Darius Rudis, Moderator Corner Carvers Delight 1989 Mustang LX - Open Track Car http://www.dariusrudis.com

07-11-2002, 12:13 AM	#3
RoadWarrior Registered Member Join Date: Apr 2000 Location: Edmonton,Alberta,Canada Posts: 317	Drudis is right. Unfortunately with cars you usually cant have the best of both worlds. Its one or the other. If you have a car set up to drag you wont be able to handle as good as someone who has a road race car. And unless you can lighten up the front end and the 429 up alot your going to be plowing into corners. __________________ Fast Company

07-14-2002, 10:11 PM	#4
82 GT Import Slayer Join Date: May 1999 Posts: 2,241	You would have to totally re-design the chassis and suspension in order for it to handle the way your're looking for. The chassis would have to be designed for the engine to set back further to compensate for the ectra weight. Then your talking a beefy suspension to handle the added weight and traction problems you would have with all that torque. I am not an engineer but that would be my guess as a start. __________________ '82 GT 351W (.060)Comp Cams 274* Extreme Energy cam, ported & polished heads w/ 1.94/1.60 valves 10.3:1 flat top pistons,stealth intake, Mallory dizzy,Holley 750dp carb, BBK shorties,Flowmaster exhaust,C-4 with 3700 stall converter, B&M pro shifter,8.8 rear, 4:10's, subframes, electric fan, powermaster alternator, 4 core radiator.

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