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7 Φεβ 2010 · Here's what MORTEC has to say about these castings: 3964291....69-72...rect..CLOSED..396, 402, 427, 454, 109cc chamber, Large or small hex spark plugs used, crate motor usage in years after 1970.
8 Μαρ 2011 · The 3964291 heads were used on late 1969-1970 L78 396/375HP, 69 L72 427/425HP, 69 L71 427/435HP, and 1970 LS6 454/450HP engines. They were also replacements for all other BBC cast iron rect. port closed chamber heads.
The Chevy Big Block’s Performance Heads have very large Intake runners with rectangular-shaped ports. The intake ports are just about 2 ¾” tall and 1 ¾” wide. Chevy only installed these heads on their high-output performance engines.
1969-1972 Corvette 3964291 Bare Cylinder Heads/Ea Chevelle/Nova/Camaro SpHi Perf. This is for One, (1 head), a Bare 69 1969 1970 Used Chevrolet BBC, (Big Block Chevy), Large Square Port, Special High Performance, Very Early Used Cylinder Heads in Good Condition, (GM Casting Number 3964291, GM Group Number 0.269), that have been hot tanked, shot ...
24 Νοε 2023 · Part # 3964291 Date D-23-70. One single head cleaned and checked for cracks. No porting or polishing. Head deck is thick and not over milled. See the deep corner markers. Guides and seats look nice.
1970 1971 BBC Big Block Chevy Rectangular Port Heads 3964291. rustyburro. (1192) 100% positive. Seller's other items. Contact seller. US $1,095.00. No Interest if paid in full in 6 mo on $99+ with PayPal Credit* Condition: Used. “Good Used” Buy It Now. Add to cart. Add to watchlist. Hurry before it's gone. 1 person is watching this item. Shipping:
20 Φεβ 2019 · That’s why we have put together this short big-block Chevy head ID guide to help you identify that swap-meet gold. Big-Block Chevy Cylinder Head Casting Numbers 330864: ’68 through ’84 oval port, open chamber, 2.06- and 1.72-inch valves.
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σχετικά με: 3964291 big block chevy headsBut Did You Check eBay? Check Out Chevy Heads On eBay. Looking For Chevy Heads? We Have Almost Everything On eBay.
