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SPEEDNEEDS1 07-09-2012 10:19 PM

4.100 toilet on a 355
I know this toilet is to big for my 450hp 355, just wondering if it will work. If so what return and nozzle size should I start with???? My motor is a street engine with 11.5 compression .509-.533 hyd cam and Vortec heads. It ran 7.37-11.39 in a 3600lbs Chevelle a few years back.
Just looking to put this in my dragster to run a local (short only 330ft ) race track and not wear my good motor out.

zipper06 07-10-2012 07:10 AM

It will work but a 3.75 would work better on a 355.

need a lot more imfo.

gas or alcohol

pump size


SPEEDNEEDS1 07-10-2012 09:47 PM

0 1/2 gold pump, alky, victor jr intake, 1950lbs with aluminum head bbc so around 1750 1800 lbs dragster with this combo, 4500 stall converter, 4.10 gear, 16x33 tire. I know with a shorter tire, and more gear it will run faster, not looking to run fast, just run..........

zipper06 07-11-2012 07:59 PM

I run a similar setup, 4.1 toilet 0-1/2 pump on alcohol 377", but with brodix track-1 heads. I run #33 dropin pills in the nozzles and usually .085 return pill. Either way the pill will be between .080 and .110 with your setup. I have a larger solid roller cam (too much for my car weight, 3250 lbs) When i first built my motor i put it in a hardtail dragster, 14X32 tires and a 4.56 gear. It ran 5.15/ 1/8 and 8.23 @ 158 MPH, but when i put it in my malibu (3250 lbs) it turned into a dog , too much cam too much weight, not enough torque, it would only run 6.53/ [email protected] MPH.
I would think if you can find a set of 31 inch slicks you could run the 4.10 gear, and should be able to run 8.50/8.70 with the setuo that you have, that's just a guess.



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