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cylinder question

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cylinder question

Post  chevyiron420 on Wed May 13, 2015 6:23 pm

I was comparing a #3 to a #1 and I cant see any difference. The are both stepped with SPI, two transfers and no boost.
Whats the difference?
If it was your engine would you run the#3 or a slit exhaust with no SPI, two transfers with one boost per transfer?
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Re: cylinder question

Post  Admin on Wed May 13, 2015 6:49 pm

The #3 was stamped on many different cylinders so there really is no exact specs for a cylinder stamped with a #3. Probably came off a product engine like a series 290 or something. If it matches a #1, then it should be 2 bypass with SPI.



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Re: cylinder question

Post  Cribbs74 on Wed May 13, 2015 7:54 pm

I would run the number 3.

I have run a number 3 in place of a number 1 as they were identical as you have found out.

Many here will testify that a good fitting number 1 will perform as well or better than a #4(TD cylinder)


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