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Re: Switching from a 4.10 to 3.55 [Re: 383man] #2270546
03/16/17 02:22 PM
03/16/17 02:22 PM
Joined: Jan 2003
Posts: 4,296
Chicago, IL
TonyS451 Offline OP
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TonyS451  Offline OP
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Originally Posted By 383man
I am curious to see what it does. I have heard of guys with 500 strokers dropping from 4.10's to like 3.55's and going just as fast. I honestly think my 63 may go faster if I drop a little gear. I think I am above my peak torque at the traps and have been thinking of dropping my 4.30's to about 3.91's. But I do run a 30" tall tire. You may not loose much if any Tony. Keep us posted on how it goes because I want to know. Ron


I'll keep you posted, Ron. Like I said, I wont have a comparison because I havnt raced the new engine yet. I do plan on racing at some point this year, and I'll be sure to post times. I know the 3.55's will certainly make my drive to and from the track more enjoyable smile


2 kids and a dog
Re: Switching from a 4.10 to 3.55 [Re: TonyS451] #2270777
03/16/17 09:02 PM
03/16/17 09:02 PM
Joined: Mar 2009
Posts: 889
Oh
P
parksr5 Offline
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parksr5  Offline
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Posts: 889
Oh
Not apples to apples but, I made the switch from 4.10's to 3.73's and went from 12.38 to 12.25; at the same time, I re-curved the distributor though. No other changes were made.

I have a 470. I really think with the torque, it doesn't matter that much.

Re: Switching from a 4.10 to 3.55 [Re: parksr5] #2277627
03/28/17 11:54 AM
03/28/17 11:54 AM
Joined: Jan 2003
Posts: 4,296
Chicago, IL
TonyS451 Offline OP
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TonyS451  Offline OP
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Chicago, IL
Here is the 3.55 third member as received from Dr Diff. It used to be fun locating all the parts and then getting it set up...or I can just call Dr Diff and get this. I like option 2 now!



2 kids and a dog
Re: Switching from a 4.10 to 3.55 [Re: TonyS451] #2277628
03/28/17 11:55 AM
03/28/17 11:55 AM
Joined: Jan 2003
Posts: 4,296
Chicago, IL
TonyS451 Offline OP
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TonyS451  Offline OP
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Chicago, IL
Pic two



2 kids and a dog
Re: Switching from a 4.10 to 3.55 [Re: TonyS451] #2278000
03/28/17 09:17 PM
03/28/17 09:17 PM
Joined: Aug 2008
Posts: 4,072
Mo.
racerx Offline
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racerx  Offline
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Mo.
Is this the nodular case?

Re: Switching from a 4.10 to 3.55 [Re: racerx] #2278003
03/28/17 09:23 PM
03/28/17 09:23 PM
Joined: Jan 2003
Posts: 4,296
Chicago, IL
TonyS451 Offline OP
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TonyS451  Offline OP
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Posts: 4,296
Chicago, IL
Originally Posted By racerx
Is this the nodular case?


Yes


2 kids and a dog
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