SBC to 454 BBC

[Donnie21090]

hey everyone, i have a 1980 Diablo... same thing as an El-camino, with a procharged small block & I'm changing it to a Procharged 454 BB ..... what do i have to use for front springs to compensate for the weight difference???? i dont want to keep the stock ones in it becouse i want it to ride & handle nice & i dont want lowering springs becouse it sits perfect and won't help .. if anyone could help me out that would be great ,
thanks

 

[dogsht]

www.jeffd.50megs.com/Moog_Spring_Page.htm I vote Moog 5660 or 5662. Beyond that is getting too stiff that it becomes harsh maybe even bouncy unless you have good shocks.

 

[johns85mcss]

are you going to use alum heads?

 

[Donnie21090]

so moog 5660 or 5662? hey thanks For the help guys & closed chamber cast heads and it also has A/C ..... just want to know what to use to compensate for the weight diff !!

thanks appretiate the help

 

[attngtr]

Why switch them? It won't lower it that much. Put it together first and see how it sits and rides.

 

[larryo454]

Hi the bbc is only 200lbs more then a sbc in stock form.

 

[Donnie21090]

I agree....... i just think the 454 BBC with cast heads, Procharger, A/C & P/S is just alot of weight

 

[tje22]

qa1 makes a really nice coilover kit that is a bolt in. they let you choose the spring by front end weight. then you get adjustable ride hight,and adjustable shocks. i put this kit on my 81 cutlass and couldnt be more happy.