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1961-65`Chevy 409/348 Heads-small valve&shallow chamber 333#castings‏ - $495 (Finger Lakes Region)

1961-65`Chevy 409/348 Heads-small valve&shallow chamber 333#castings‏ - $495 (Finger Lakes Region)

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1961-1965 Chevy 409 - 348 (2) pairs) of 'W" block- engine series "small valve" heads (1st) pair of 1960 ''348''heads small valves (for Factory 250-280 HP engines) with Tonawanda casting number #( 3758379) Then,a (2nd)pair 'of 'later''series cylinder heads vintage 1964-65`(cast for late production 348-409s) these Heads have small valves /shallow cast chambers( Casting No. 3819333#) both pair of head sets in good used condition /stock original Cylinder Heads'' are not modified- "as is" pulled (These later 333# castings are a good basis for a ''budget build'',a reasonable cylinder head for 409 Big Block ''overbore & stroke'' Kits,in big cubic inch Engine builds, these heads are aimed at Street RPM range Torque & reasonable modified port work for higher Horsepower (*with adequate,casting material port wall thickness (''meat'') for some basic, machine shop, high performance "port flow"cleanup work(So these later''333'' # casting heads have ability to be in a typical Machine Shop,''hogging out''grinding in the ports & larger valves/ hardened seats cut for modifying intake & exhaust ports to higher CFM flow-bench numbers) 333# Heads are cast with shallow combustion chambers -making a reasonably good street-able Engine compression ratio for today`s no-lead/ low-lead,(89-93 Octane) pump gas especially when combined with the stock compression height 409 - 470 plus +cube Aftermarket Supplier piston kits - Asking $495 or best reasonable offer for each matched, Cylinder Head pairs

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Last Updated on: February 21, 2018
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