SBC port size?

rod · 02-02-2022, 09:22 PM

going to do a rebuild on a 327 Chevy. stock flat tops, mild hyd. cam, like 480"x 220 @ 50 [or close]. just a cruiser, no racer. Mario wants a new set of aluminuuuuun heads. so I am need an idea on intake port size. is 180 cc OK, I'm betting 200cc is way to big.

lots of selection on ebay. brands to look at/stay away from.

thoughts/ideas
thanks Rod in AZ

Tim H · 02-03-2022, 08:28 AM

Yes. 200 is too large. I love the Dart 175 I have on a ft 350, w/ .460/.470 , 218/224 @.050 hyd cam, dual plane intake, auto trans, stk convertor.

02-02-2022, 09:22 PM	#1
rod Member Join Date: Dec 2009 Location: Kingman, NW AZ. in the middle of the longest stretch of Route 66 Posts: 307 Likes: 0 Liked 17 Times in 13 Posts	SBC port size? going to do a rebuild on a 327 Chevy. stock flat tops, mild hyd. cam, like 480"x 220 @ 50 [or close]. just a cruiser, no racer. Mario wants a new set of aluminuuuuun heads. so I am need an idea on intake port size. is 180 cc OK, I'm betting 200cc is way to big. lots of selection on ebay. brands to look at/stay away from. thoughts/ideas thanks Rod in AZ

02-03-2022, 08:28 AM	#2
Tim H VIP Member Join Date: Jan 2007 Posts: 1,010 Likes: 898 Liked 430 Times in 142 Posts	Re: SBC port size? Yes. 200 is too large. I love the Dart 175 I have on a ft 350, w/ .460/.470 , 218/224 @.050 hyd cam, dual plane intake, auto trans, stk convertor. Last edited by Tim H; 02-03-2022 at 08:35 AM.