Previous Thread
Next Thread
Print Thread
Engine Break In Question #2996438
12/18/21 01:25 PM
12/18/21 01:25 PM
Joined: Apr 2005
Posts: 843
Ohio
B
B5TA Offline OP
super stock
B5TA  Offline OP
super stock
B

Joined: Apr 2005
Posts: 843
Ohio
I hope to have my 340 6Pak ready to run in early April. Planning on building a Test/Run stand to make things a little easier. My question for you guys is would it be smarter and easier to use a stock 2 or 4 barrel intake manifold for break- in. I think I know the answer but would like you guys thoughts. Thanks, Kevin

Re: Engine Break In Question [Re: B5TA] #2996453
12/18/21 02:17 PM
12/18/21 02:17 PM
Joined: Jan 2003
Posts: 17,740
So Near, Yet So Far
topside Offline
I Live Here
topside  Offline
I Live Here

Joined: Jan 2003
Posts: 17,740
So Near, Yet So Far
My philosophy is to eliminate or minimize variables, so the engine starts right away and the fuel & ignition are within acceptable parameters.
Known-good carbs are a good idea.
For break-in, the size/CFM isn't going to matter (within reason) under 3000 RPM, though the jetting & condition will.
If someone like Scott Smith has gone through the carbs (and tested them), I'd bolt that setup on.

Re: Engine Break In Question [Re: topside] #2996458
12/18/21 02:28 PM
12/18/21 02:28 PM
Joined: Nov 2007
Posts: 21,447
Kirkland, Washington
Pacnorthcuda Offline
Too Many Posts
Pacnorthcuda  Offline
Too Many Posts

Joined: Nov 2007
Posts: 21,447
Kirkland, Washington
I would run it as a six pack. You are only gonna be on center carb anyway. One tip….run rubber fuel line segments to all the carbs till you get them set (all jetting/metering). That saves the wear and tear on hard lines taking them on and off. Once your set, put on the pretty hard lines.

Re: Engine Break In Question [Re: Pacnorthcuda] #2996471
12/18/21 02:49 PM
12/18/21 02:49 PM
Joined: Dec 2007
Posts: 17,950
Mass
DAYCLONA Offline
I Live Here
DAYCLONA  Offline
I Live Here

Joined: Dec 2007
Posts: 17,950
Mass
Originally Posted by Pacnorthcuda
I would run it as a six pack.






Agreed...I've always broken in engines running the intended induction system, be it single, dual, triple carbs, or supercharged....







Powered by UBB.threads™ PHP Forum Software 7.7.1