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#1 | |
Registered User
Join Date: Mar 2008
Location: Eagle Ne
Posts: 356
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Re: 11 second ?
Quote:
I'm not really trying to stay with factory castings but I already have them and using them would keep costs down. The intake was cast in 68 I think Would this be a stout enough bottom end? http://www.speedwaymotors.com/p/3176...ssemblies.html It's part # 91510219 or would this be better http://www.speedwaymotors.com/p/3177...ssemblies.html part #91510280 or 91510290 Or should I just buy some pistons and use the stock bottom end?
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60 4x4,235,SM420,Rockwell T221,D44/HO33 sold 4/12 67 C-20,292,SM420,HO72 90 Dodge W250 Cummins,NV4500HD,205,D60/D80 93 Dodge W350 Dually Cummins, Getrag, 205,D60/D70 |
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#2 |
Registered User
Join Date: Jun 2006
Location: Jackson, Mo.
Posts: 607
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Re: 11 second ?
If it were me, I'd find a TRW or Speedpro piston that would give around 10.5:1 compression with the heads you plan on using and use your stock bottom end. Factory cast cranks are stronger than some people give them credit for. The factory rods will take some abuse, as well. Just make sure to install good rod bolts. I would use the parts you have and spend any extra money on the heads and valvetrain. This build would be very similar to the 383 I had about 15 years ago. Factory cast crank, stock 400 rods w/ ARP bolts, TRW #2256 forged pistons, an old pair of Sportsman iron heads, .630 lift roller, Holley strip dominator intake, and an 850 carb. This setup went 7.90s @ 87 or so in the 1/8 in my truck, all on pump gas. And I sprayed this motor with up to a 250 shot SEVERAL times and never hurt a thing. You have to really keep an eye on your tuneup when using parts like these and trying to make good power with them.
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#3 | |
Hay Team!!
![]() Join Date: Jun 2003
Location: Ft. Worth, TX, USA
Posts: 366
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Re: 11 second ?
Quote:
Very well said....I agree with all points made!
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1972 Chevrolet Cheyenne LWB "Orange and White" 8) |
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