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Old 11-27-2025, 11:07 PM
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Jay S Jay S is offline
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Join Date: May 2018
Location: Nebraska City, Nebraska
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Quote:
Originally Posted by J.C.you View Post
We are using the 557 400 and 810 350 later blocks in the dirt car. Both have dowels. No problems yet/knock,knock��. Main reason is the weight savings off the front of the car. Spin 6200. I plan on doing some dyno testing to see where we’re at on hp. Class is limited to a 4412 2 barrel Holley carb.
Cool. Are you using main studs?

Have you ever weighed the 810 350 block?

Here is photo of one my bare 500557 blocks. 154.5 lbs, pretty much the same as a bare SBC.
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Last edited by Jay S; 11-27-2025 at 11:14 PM.
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