Offshoreonly.com - BBC chamber volume sizes

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phughes69

11-27-2018 10:24 PM

BBC chamber volume sizes

What is the chamber volume size on the late 70's 330 BBC heads?

f_inscreenname

11-28-2018 11:01 AM

118cc for the peanut port heads. Take the head number and do a google search for sure.

getrdunn

12-05-2018 07:37 PM

119 on the 049's. That's the non peanut port. Std oval port then.

dereknkathy

12-14-2018 08:58 AM

most heads after 72 are 119. at least RATED 119. get a Walmart 4 buck flavor shooter in the cooking section. 30cc syringe. accurate enough. piece of plexi about 6 inches square. drill a hole about 3/8ths on one side. grease plexi and stick it to the head. start shooting water in to the hole. with valves and spark plug, obviously. 25cc at a time. now you know the chamber volume. the heads from an 02 461 hp 502 are 113.5cc. they look just like the 119 cc peanut head chambers I have.

mike tkach

12-14-2018 09:23 AM

is that 461 hp 502 a gm crate engine?

dereknkathy

12-16-2018 04:26 PM

Yes. Bought it with cracked block. Got frozen.

beaver 3

12-17-2018 02:40 PM

my 781s both measured at 118 for what its worth

offroadr

01-05-2019 07:59 PM

Most likely 118 as others have said

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