head casting??

[BSKA]

921 casting number sbc , anybody have any info?
thanks

[joedoozer]

Never heard of them.

[parrot69777]

Any other info? Full casting number? Casting date? Markings on the head? Does it have 3/8 accessory holes on the end of the head or 7/16? What size valves?

I know they made a 3998920 casting that is the same as the 441. Even has the same mark on the end of the head.

[Graff Spee]

I tried to look them up. No luck.

[dave41]

cly head

there was a 291 ,not a good head

[AttarStorwale]

ñòðîèòåëüñòâ

Ïðîäóêöèÿ Ñòðèì-Ëàçåð – òî îðèãèÃàëüÃûå ìåòàëëîèçäåëèÿ Ãà çàêàç ñ èñïîëüçîâàÃèåì øòàìïîâàÃÃûõ è êîâàÃûõ ýëåìåÃòîâ äåêîðà. Ïðè ýòîì ñïåöèàëèñòû êîìïàÃèè ñ÷èòàþò êàæäûé çàêàç óÃèêËèÃåàðÃûå ïàÃåëè.
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[50j]

Pretty sure that's not one.

[BSKA]

dont actually have the heads in my garage yet, a buddy of mine has them told me rare head 921 casting. i will check with him this week confirm as I couldnt find anything on them either. he was very competetive with them on his motor so im interested!!

[parrot69777]

there was a 291 ,not a good head

What's wrong with a 291 head?