Thread: New block
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Old 06-02-2017, 07:11 PM   #295
Yoyodyne
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Join Date: Nov 2010
Location: Lancaster PA
Posts: 527
Default Re: New block

On the subject of ports, is there an often chosen size of intake port at the manifold/block surface for mild street engines? Best makes a "Big Port" intake gasket, and it seems I've seen many recommendations here to just open the block and manifold to match that gasket. http://www.bestgasket.com/engine_cat...59A%20Std-Bore.......[511]

I bought a manifold for my project that has already been cut to that size, so I need to open up my block to match. If Tod's block had that size port already, what harm would there be in putting a stock port size manifold on it? I do understand why not to go from large to small, and I understand about potential turbulence from the small to large mismatch, but it gets done on OHV engines every day, sometimes even large mismatches. Some even claim a benefit from anti-reversion effects.

BTW - Here's a thread with some info on what rods will fit through what diameter bores. https://www.fordbarn.com/forum/showp...03&postcount=7

A friend built a B engine with aluminum rods, he had to install the rods onto the pistons from the bottom, after the pistons and rings had been inserted into the cylinders, and before putting the crank in. Is that possible in an 8BA? Has anyone here ever done that?
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