Big Cube Small Blocks, how much of....
Thread Starter
Team Owner
Joined: Mar 2000
Posts: 83,381
Likes: 87
From: Boston, MA
Big Cube Small Blocks, how much of....
...a world of hurt will a novice like myself be in trying to put one of these together once the recipie is made? I am thinking going going with a 406-422 size engine as the next heart for my baby. :)
Can the stock electronics & MAF system manage an engine like that? Or is an aftermarket setup basically required?
Can the stock electronics & MAF system manage an engine like that? Or is an aftermarket setup basically required?
Le Mans Master
Joined: Feb 1999
Posts: 5,877
Likes: 1
From: Park Ridge IL
Re: Big Cube Small Blocks, how much of.... (scorp508)
Building a big SBC ain't much different than building a typical 383, except you use a 400 block and you need to change you "train of thought" when it comes to selecting heads and cams. Once you get 400+ ci's, you need to almsot think in Big Block terms when it comes to cylinder head intake runner sizes and camshaft specs. With a 420+ ci SC, it's hard to run too large of a head and too much cam. 220cc and 250 degrees duration at .050" is "mild".
As for the EFI, you're probably better off with an after matker speed density like a FAST or Accel/DFI, but there are numerous examples of impressive big SBC's using factory electronics. It's really a matter of the tuner's talent. The MAF sensor will be a restriction, but there are aftermarket alternatives.
As for the EFI, you're probably better off with an after matker speed density like a FAST or Accel/DFI, but there are numerous examples of impressive big SBC's using factory electronics. It's really a matter of the tuner's talent. The MAF sensor will be a restriction, but there are aftermarket alternatives.
Safety Car
Joined: Aug 2000
Posts: 3,909
Likes: 26
From: Clymer PA
Re: Big Cube Small Blocks, how much of.... (scorp508)
Scorp:
Didn't you just get done putting her back together :D? If anyone on this forum can offer you advice on big-cube small block motors it's Monty.
Didn't you just get done putting her back together :D? If anyone on this forum can offer you advice on big-cube small block motors it's Monty.
Thread Starter
Team Owner
Joined: Mar 2000
Posts: 83,381
Likes: 87
From: Boston, MA
Thanks Monty!
Yes, sir! Time to start planning ahead. I spent 2 years buying parts and planning out the current one. :)
Scorp:
Didn't you just get done putting her back together :D? If anyone on this forum can offer you advice on big-cube small block motors it's Monty.
Didn't you just get done putting her back together :D? If anyone on this forum can offer you advice on big-cube small block motors it's Monty.
Yes, sir! Time to start planning ahead. I spent 2 years buying parts and planning out the current one. :)
