406 vs. 355

ericsz · 12-02-2010, 09:58 AM

Looking for you experienced opinions. I am building a 355 this season going from a 406, I am going to build it using the exact same set up as far as heads, camshaft, carb etc. I am looking for opinions to see what the ET difference will be between the 2. Again this motor will be an exact replica of the 406 heres the specs

1969 Camaro 3375 lbs
355 sbc
isky hyd flat tappet 256/256 525/525 cam
750 carb on E85
3.73 gear
400 Turbo with coan brake and 5500 converter
Edelbrock Performer RPM Heads 202/160
Victor Jr. Intake
12:1
29.5x10.5W's

Thanks!

Jim Hanig · 12-02-2010, 10:04 AM

Quote:

Originally Posted by ericsz

Looking for you experienced opinions. I am building a 355 this season going from a 406, I am going to build it using the exact same set up as far as heads, camshaft, carb etc. I am looking for opinions to see what the ET difference will be between the 2. Again this motor will be an exact replica of the 406 heres the specs

1969 Camaro 3375 lbs
355 sbc
isky hyd flat tappet 256/256 525/525 cam
750 carb on E85
3.73 gear
400 Turbo with coan brake and 5500 converter
Edelbrock Performer RPM Heads 202/160
Victor Jr. Intake
12:1
29.5x10.5W's

Thanks!

I think the 406 is going to be .20 faster. mainly because of the torque of the 406. Jim Hanig

Woodro Josey · 12-02-2010, 09:40 PM

I agree with Jim at Least .20 Tenths,,,,,,,,,you no the old saying, there is no substitute for Cubic Inches,,,,,except cubic dollars! Having the 406 with a good block, i'd take it any day!

12-02-2010, 09:58 AM	#1
ericsz Member Join Date: Jul 2007 Posts: 140 Likes: 0 Liked 0 Times in 0 Posts	406 vs. 355 Looking for you experienced opinions. I am building a 355 this season going from a 406, I am going to build it using the exact same set up as far as heads, camshaft, carb etc. I am looking for opinions to see what the ET difference will be between the 2. Again this motor will be an exact replica of the 406 heres the specs 1969 Camaro 3375 lbs 355 sbc isky hyd flat tappet 256/256 525/525 cam 750 carb on E85 3.73 gear 400 Turbo with coan brake and 5500 converter Edelbrock Performer RPM Heads 202/160 Victor Jr. Intake 12:1 29.5x10.5W's Thanks! __________________ Eric Bowling

12-02-2010, 09:40 PM	#3
Woodro Josey Senior Member Join Date: Jul 2007 Posts: 805 Likes: 0 Liked 3 Times in 1 Post	Re: 406 vs. 355 I agree with Jim at Least .20 Tenths,,,,,,,,,you no the old saying, there is no substitute for Cubic Inches,,,,,except cubic dollars! Having the 406 with a good block, i'd take it any day! __________________ Woodro Josey 2002 STK