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Would be interesting to see a Procharged BB Vs SB shootout.

Small Block R-3 block .060 over 340 bore size + 4.1 inch crank (433 CID) with Indy W-2 heads & single plane intake.

Big Block .030 over 383 + 3.75 crank with 440 Source Heads & single plane intake (432 CID).

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Lets break this down: You want to compare an after market R3 block to a stock 383.

Small block after market stroker crank to a stock stroke 383.

W-2 heads one of the better after market heads when ported right. To an entry level lowest priced,lowest flowing 440source head.


dollar for dollar.

cubic inch wins.
small blocks are nice but to race with the big dogs figure on spending about 1/3 to 1/2 more money.