Chevrolet Engine Swap Parts - Rat-ify Your Chevrolet
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If you’re looking for big-block headers, the pipe spacing can identify them. Notice that the big-block header (shown upper) has evenly spaced tubes. Small-block headers (shown lower) join the two center tubes. Remember that headers are not only designed for the engine, but also for the chassis. So be careful buying used headers. View Related Article
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