finally a TRUE factory style 4V alloy head for the Cleveland enthusiasts. at CHI we realise that not everyone wants to upgrade their intake manifolds, so we went about creating a 4V head for the Cleveland enthusiasts. Designed around our 3V 218cc intake port we spent many hours re shaping the entry of the 218cc port to accommodate factory and aftermarket 4V manifolds like the Torker, Strip Dominator etc etc. Careful attention was paid during development of the opening of the port, so as to not increase the volume of the port any more than necessary and keep the velocity as high as possible.
The price listed is for a pair of heads.
Finally a true factory style 4V alloy head for the Cleveland enthusiasts. At CHI we realise that not everyone wants to upgrade their intake manifolds, so we went about creating a 4V head for the Cleveland enthusiasts. Designed around our 3V 218cc intake port we spent many hours re shaping the entry of the 218cc port to accommodate factory and aftermarket 4V manifolds like the Torker, Strip Dominator etc etc. Careful attention was paid during development of the opening of the port, so as to not increase the volume of the port any more than necessary and keep the velocity as high as possible. Essentially we have created a full size 4V head with a port volume smaller than most “small port” epoxied 4V heads! The new head features the same standard height “UNI” exhaust port as our 2V head allowing the use of either 2V or 4V headers. The intake opening is as per the original factory 4V heads and will accept all factory manifolds. The 4V heads come machined to accept 2.190”Intake valves and 1.650” Exhaust valves and can be machined to accept 1.710”on request and at no extra charge.
With 325cfm of intake airflow and easy compatibility with existing parts the all new 4V head makes for the most economical horsepower and torque upgrade available for the trusty 4V headed. At just 228cc in port volume the all new 4V flows a massive 325cfm at .700”lift, taking the 4V head to a new level of performance, never before available from a standard intake port location and size.
| Head Model | Part No. | Assembled | Chamber | Valve Sizes Intake/Exhaust | Exhaust Pattern | Intake Manifold | Application |
|---|---|---|---|---|---|---|---|
| 4V 228cc | SBF4V228B-60 | Bare | 60cc | 2.190/1.650 | 2V or 4V | CHI 4v 228 | |
| SBF4V228B-67 | Bare | 67cc | 2.190/1.650 | 2V or 4V | CHI 4v 228 | ||
| SBF4V228B-75 | Bare | 75cc | 2.190/1.650 | 2V or 4V | CHI 4v 228 | ||
| SBF4V228C1-60 | [tooltip tip="This complete Street cylinder head package comes with CHI Custom made by REV (USA), stainless steel valves with hard chromed stems. We use Chrome-Molly-7 Degree Retainers, Chrome Moly Machined Valve Locks (not the cheaper stamped steel versions), and Isky 805-DO valve springs. Seat pressures are typically 130lbs, with a 330lbs/in spring rate. This package is ideal for hydraulic camshafts to 230@.050 with .570" lift, or small solids up to 230@.050 and .570" lift that are street driven regularly, Heads are finished off with matching hardened spring pad locators to positively locate the valve spring and Viton valve stem seals for unsurpassed oil control."]Street[/tooltip] | 60cc | 2.190/1.650 | 2V or 4V | CHI 4v 228 | Street Hydraulic Flat Tappet | |
| SBF4V228C1-67 | [tooltip tip="This complete Street cylinder head package comes with CHI Custom made by REV (USA), stainless steel valves with hard chromed stems. We use Chrome-Molly-7 Degree Retainers, Chrome Moly Machined Valve Locks (not the cheaper stamped steel versions), and Isky 805-DO valve springs. Seat pressures are typically 130lbs, with a 330lbs/in spring rate. This package is ideal for hydraulic camshafts to 230@.050 with .570" lift, or small solids up to 230@.050 and .570" lift that are street driven regularly, Heads are finished off with matching hardened spring pad locators to positively locate the valve spring and Viton valve stem seals for unsurpassed oil control."]Street[/tooltip] | 67cc | 2.190/1.650 | 2V or 4V | CHI 4v 228 | Street Hydraulic Flat Tappet | |
| SBF4V228C1-75 | [tooltip tip="This complete Street cylinder head package comes with CHI Custom made by REV (USA), stainless steel valves with hard chromed stems. We use Chrome-Molly-7 Degree Retainers, Chrome Moly Machined Valve Locks (not the cheaper stamped steel versions), and Isky 805-DO valve springs. Seat pressures are typically 130lbs, with a 330lbs/in spring rate. This package is ideal for hydraulic camshafts to 230@.050 with .570" lift, or small solids up to 230@.050 and .570" lift that are street driven regularly, Heads are finished off with matching hardened spring pad locators to positively locate the valve spring and Viton valve stem seals for unsurpassed oil control."]Street[/tooltip] | 75cc | 2.190/1.650 | 2V or 4V | CHI 4v 228 | Street Hydraulic Flat Tappet | |
| SBF4V228C2-60 | [tooltip tip="This complete Street cylinder head package comes with CHI Custom made by REV (USA), stainless steel valved with hard chromed stems. We use Chrome-Molly-7 Degree Retainers, Chrome Moly Machined Valve Locks (not the cheaper stamped steel versions), and Isky 6105 Dual W/Damper valve springs. Seat pressures are typically 135lbs, with a 330lbs/in spring rate. This package is ideal for hydraulic roller camshafts to 230@.050 with .600" lift, or small solids up to 230@.050 and .570" lift that are street driven regularly. Heads are finished off with matching hardened spring pad locators to positively locate the valve spring and Viton valve stem seals for unsurpassed oil contro.l"]Street/Strip[/tooltip] | 60cc | 2.190/1.650 | 2V or 4V | CHI 4v 228 | Street/Strip Roller Hydraulic | |
| SBF4V228C2-67 | [tooltip tip="This complete Street cylinder head package comes with CHI Custom made by REV (USA), stainless steel valved with hard chromed stems. We use Chrome-Molly-7 Degree Retainers, Chrome Moly Machined Valve Locks (not the cheaper stamped steel versions), and Isky 6105 Dual W/Damper valve springs. Seat pressures are typically 135lbs, with a 330lbs/in spring rate. This package is ideal for hydraulic roller camshafts to 230@.050 with .600" lift, or small solids up to 230@.050 and .570" lift that are street driven regularly. Heads are finished off with matching hardened spring pad locators to positively locate the valve spring and Viton valve stem seals for unsurpassed oil contro.l"]Street/Strip[/tooltip] | 67cc | 2.190/1.650 | 2V or 4V | CHI 4v 228 | Street/Strip Roller Hydraulic | |
| SBF4V228C2-75 | [tooltip tip="This complete Street cylinder head package comes with CHI Custom made by REV (USA), stainless steel valved with hard chromed stems. We use Chrome-Molly-7 Degree Retainers, Chrome Moly Machined Valve Locks (not the cheaper stamped steel versions), and Isky 6105 Dual W/Damper valve springs. Seat pressures are typically 135lbs, with a 330lbs/in spring rate. This package is ideal for hydraulic roller camshafts to 230@.050 with .600" lift, or small solids up to 230@.050 and .570" lift that are street driven regularly. Heads are finished off with matching hardened spring pad locators to positively locate the valve spring and Viton valve stem seals for unsurpassed oil contro.l"]Street/Strip[/tooltip] | 75cc | 2.190/1.650 | 2V or 4V | CHI 4v 228 | Street/Strip Roller Hydraulic | |
| SBF4V228C3-60 | [tooltip tip="This complete Competition cylinder head package comes with CHI Custom made by REV (USA), swirl polished stainless steel valved with hard chromed stems. We use Chrome-Molly-7 Degree Retainers, Machined Valve Locks (not the cheaper stamped steel versions), and Isky 8005A Dual W/Damper Competition valve springs. This package is ideal for large solid cams of up to .625" lift (be sure to subtract valve lash from your camshaft specs when determining net valve lift), that are raced on a regular basis. Heads are finished off with matching hardened spring pad locators to positively locate the valve spring and Viton valve stem seals for unsurpassed oil control"]Competition[/tooltip] | 60cc | 2.190/1.650 | 2V or 4V | CHI 4v 228 | Street/Strip Solid Flat Tappet | |
| SBF4V228C3-67 | [tooltip tip="This complete Competition cylinder head package comes with CHI Custom made by REV (USA), swirl polished stainless steel valved with hard chromed stems. We use Chrome-Molly-7 Degree Retainers, Machined Valve Locks (not the cheaper stamped steel versions), and Isky 8005A Dual W/Damper Competition valve springs. This package is ideal for large solid cams of up to .625" lift (be sure to subtract valve lash from your camshaft specs when determining net valve lift), that are raced on a regular basis. Heads are finished off with matching hardened spring pad locators to positively locate the valve spring and Viton valve stem seals for unsurpassed oil control"]Competition[/tooltip] | 67cc | 2.190/1.650 | 2V or 4V | CHI 4v 228 | Street/Strip Solid Flat Tappet | |
| SBF4V228C3-75 | [tooltip tip="This complete Competition cylinder head package comes with CHI Custom made by REV (USA), swirl polished stainless steel valved with hard chromed stems. We use Chrome-Molly-7 Degree Retainers, Machined Valve Locks (not the cheaper stamped steel versions), and Isky 8005A Dual W/Damper Competition valve springs. This package is ideal for large solid cams of up to .625" lift (be sure to subtract valve lash from your camshaft specs when determining net valve lift), that are raced on a regular basis. Heads are finished off with matching hardened spring pad locators to positively locate the valve spring and Viton valve stem seals for unsurpassed oil control"]Competition[/tooltip] | 75cc | 2.190/1.650 | 2V or 4V | CHI 4v 228 | Street/Strip Solid Flat Tappet | |
| 4V 240cc | SBF4V240B-60 | Bare | 60cc | 2.190/1.650 | 2V or 4V | CHI 4V | |
| SBF4V240B-67 | Bare | 67cc | 2.190/1.650 | 2V or 4V | CHI 4V | ||
| SBF4V240C3-60 | [tooltip tip="This complete Competition cylinder head package comes with CHI Custom made by REV (USA), swirl polished stainless steel valved with hard chromed stems. We use Chrome-Molly-7 Degree Retainers, Machined Valve Locks (not the cheaper stamped steel versions), and Isky 8005A Dual W/Damper Competition valve springs. This package is ideal for large solid cams of up to .625" lift (be sure to subtract valve lash from your camshaft specs when determining net valve lift), that are raced on a regular basis. Heads are finished off with matching hardened spring pad locators to positively locate the valve spring and Viton valve stem seals for unsurpassed oil control"]Competition[/tooltip] | 60cc | 2.190/1.650 | 2V or 4V | CHI 4V | ||
| SBF4V240C3-67 | [tooltip tip="This complete Competition cylinder head package comes with CHI Custom made by REV (USA), swirl polished stainless steel valved with hard chromed stems. We use Chrome-Molly-7 Degree Retainers, Machined Valve Locks (not the cheaper stamped steel versions), and Isky 8005A Dual W/Damper Competition valve springs. This package is ideal for large solid cams of up to .625" lift (be sure to subtract valve lash from your camshaft specs when determining net valve lift), that are raced on a regular basis. Heads are finished off with matching hardened spring pad locators to positively locate the valve spring and Viton valve stem seals for unsurpassed oil control"]Competition[/tooltip] | 67cc | 2.190/1.650 | 2V or 4V | CHI 4V |
| Weight | N/A |
|---|---|
| Dimensions | N/A |
| Cylinder head type | |
| Assembly | Bare, C1 – Street Assembly, C2 – Street/Strip Assembly, C3 – Competition Assembly, C4 – Competition Assembly, C5 – Competition Assembly |
| Chamber Volume |
