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Jim Hawkins · 01-22-2015, 11:33 PM

Is it worth the cost or necessary to put 4 bolt caps or fill the 721 block for a race car motor? This block I have was from a old modified motor. 3.935x3.00 292 cubes. Not filled and stock caps.

01-22-2015, 11:33 PM	#9
Jim Hawkins Member Join Date: Jan 2010 Posts: 198 Likes: 89 Liked 115 Times in 35 Posts	Re: 283 pistons Is it worth the cost or necessary to put 4 bolt caps or fill the 721 block for a race car motor? This block I have was from a old modified motor. 3.935x3.00 292 cubes. Not filled and stock caps.