Set includes 12 stock replacement valves (6 intake and 6 exhaust). Fits 170/200/250ci cylinder heads produced from '65-'76 with 5/16" stem. See Details for more information.

Set includes 6 Port-Flow 1.450" Stainless Steel exhaust valves. Fits all 170/200/250ci cylinder heads. Requires machining for larger valve seats. See Details for more information.

Set includes 6 Port-Flow 1.500" Stainless Steel exhaust valves. Fits all 170/200/250ci cylinder heads. Requires machining for larger valve seats. See Details for more information.

Set includes 6 Port-Flow 1.750" Stainless Steel intake valves. Fits all 170/200/250ci cylinder heads. These valves work great for increasing air flow in a stock cast iron cylinder head. See Details for more information.

Set includes 6 Port-Flow 1.800" Stainless Steel intake valves. These valves may be used in 200/250ci (77-83) cast iron heads, however custom chamber work (de-shrouding) is required. See Details for more information.

Set includes 6 Port-Flow 1.840" Stainless Steel exhaust valves. Fits all Classic Inlines aluminum cylinder heads. We do not recommended these valves for stock cast iron heads. See Details for more information.

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Set includes 12 Port-Flow Stainless Steel valves (6 intake and 6 exhaust) Please verify size and application before ordering. See Details for more information.