SBC 350 Cylinder Head Bare Straight Plug Aluminum Perfect fits for Chevy Small Block 302|327|350|383|400 200cc Intake 64cc Camaro Z28, Chevelle, Monte Carlo, Hot Rods, Street Rods

I'm giving these 4 stars for now but could be a five after final assembly. The heads I received came in a Deepmotor brand box. Part numbers DM-CYSBC002. The deck surface on both heads I received were flat. No need to have them surfaced. I'm using +.1 length valves and .045 thick spring locators. This combination gave me right at 1.75 valve spring height on both intake and exhaust valves. The valve seats were all of uniform depth in the heads so the valve tips were all the same height which makes it easier to get the valve train geometry correct without having to mix and match pushrod length. Very happy so far with these. I will have to do some light clean up of casting flash and remove some sharp ridges left where the seats meet the head castings and but that's no big deal. I'm not done assembling these yet, but it looks like, this pair anyway, are excellent heads. I've only hand lapped two valves so far but got excellent pattern on both, so if that holds true for the other 14 these are definitely 5 star heads.

These heads are fantastic for the money ! Big performance improvement over the stock Chevy heads. They will be a big performance boost for my 327 ci. Gasser build ! I rate them five stars...very happy purchase.

The media could not be loaded.  WOULD BE 5 STARS BUT I MIGHT MAKE SOME PEOPLE UPSETOpen up your header thru hole by a 1/16 to fix the casting centering with the threaded holes on the header ports. One valve seat wasn’t down all the way so I got my seating tool and boom fixed. I laped the valve and it held perfect. These heads are great. ALL THE PORTS ARE JUST ABOUT MAXED OUT ON WALL THICKNESS. NO PORTING NEEDED, if you do, chances are you will break threw into the push rod clearance hole. It’s a head people it just needs to seal up to work and I promise you they will if you just inspect the work. Castings will always very and I’d rather be the inspector than pay for an expensive head that was professionally inspected and still may need attention.

These heads are an exact copy of a Dart 200cc head that I have. Valve job looks good put they do need some porting to make them as good as the Darts. Most of the work will be in the port openings as there is a lot of metal to remove but it will make the heads right. Good heads for $386 bucks. Will update this after porting.UPDATE: Ported these heads mostly in the pinch area of the port opening and they picked up a lot on the flow bench with all the other cleanup I did with the heads. Be careful as a busted through one of the ports and had to epoxy it, wasn't a big deal. These heads went almost 300cfm on the intake side alone.

The heads are a good starting point. I had a machine shop clean up the ports. New hardware. 5 angle grind. Mine needed resurfaced 3 thousandth. At 500 lift flow at 261 800 lift 284. Minor work and flow test 1600 dollars. Do the work yourself and save or have a pro do it. I can buy 195 afr heads for 2000 that don't out flow this head. Well afr outflows at 4 and 500. I would buy these heads again.