Description
Part#: ALL-30173
Manufacturer: Chevrolet
Year Range: 86-93
Engine Size: 5.7L - 350ci - V8 - Slotted
Description: 86-93 Chevy SBC 5.7L 350 193 Slotted Push Rod Holes Cylinder Head
Introducing our 86-93 Chevy SBC 5.7L 350 193 Slotted Push Rod Holes Cylinder Head, proudly manufactured by Chevrolet to exceed OEM specifications. These 193 heads, also known as 193 sbc heads or Chevy 193 heads, are the perfect fit for your 5.7L 350ci V8 engine. Designed specifically for the 1990 Chevy 350, these heads provide exceptional performance and reliability.
Our slotted design ensures precise push rod alignment, optimizing your engine's efficiency. Whether you have a GM 193 head, a TBI 350, or a standard SBC 350, these cylinder heads are an ideal choice. Looking for 350 heads for sale? Look no further; our 193 Chevy heads are the solution.
If you require a complete cylinder head rebuild kit, we've got you covered. We offer Chevy 350 cylinder head rebuild kits as well. Upgrade your engine's performance with our premium Chevy 350 heads for sale. These cylinder heads for 350 Chevy engines are engineered to deliver outstanding results. Get the specs you need with our SBC head specs. Trust in Chevrolet's quality for your engine needs.
Find the perfect match of Cylinder heads for your vehicle among our extensive selection of Chevrolet Cylinder Heads. Not sure if your device is compatible? If you need help or have any questions, our expert support team is just a message away! Use our contact form, call us at 866-766-9955, or send an email to sales@alliedmotorparts.com. We're eager to assist you in every way possible. For information on cylinder heads, be sure to check out our blog section.
Learn more about Chevrolet Cylinder Heads.
This Cylinder Head has a core charge of $50.00 included in the cost. This charge is FULLY REFUNDED upon return. We will include a prepaid label for the return freight.
The cylinder head included in this listing will fit the vehicles listed below. It is also important to review/confirm the fitment notes above to ensure the vehicle specifics of the head are correct for your application. If you have any questions that this may not be the correct head for your vehicle or need help in locating the correct head, please contact us via phone or email prior to making a purchase.
Cylinder Head Rebuilding Process
- Initial Inspection: As a unit comes to our shop, we will give it an initial inspection to determine if there are any reasons the head should not proceed to the rebuilding process. This inspection can quickly catch problems such as cracks, casting damage, and other situations that would halt the rebuilding procedure for that casting.
- Teardown: Teardown is also important to the initial inspection process as the cylinder head is disassembled because you can determine other areas of potential damage to the casting. The parts and cylinder head are separated and go through different cleaning processes.
- Cleaning Process: We use several different processes to clean cylinder heads.
- Cast Iron Heads: Cast Iron heads are cleaned in a thermal cleaning system. They are baked at 600° to reduce and oils into an ash, and are then put in a steel shot machine to give them a nice brilliant finish.
- Head Inspection: After cleaning heads, they are then pressure tested or magnaflux to determine any cracks. All bolt holes and valve guides, in addition to the valve seat and other parts of the head, are inspected for damage such as broken bolts, broken taps, cracked guides, and other impairments. Straightness and cam bore wear is also checked.
- Machining: All cylinder heads have guides installed to meet OE conditions. They are resurfaced to far exceed factory specifications on surface finish. Three angle valve job is performed to achieve a valve seat runout of less than .001. Valves are ground to make a perfect seal between the valve and valve seat.
- Assembly: All heads have new OE style valve guide seals installed. Springs are tested to insure proper seat pressures. Valve seat sealing is checked with a vacuum to ensure an airtight fit between the valve and the valve seat. Lifters are bled and rebuilt to accomplish zero lash after startup of the engine. Cams are polished and clearances are checked twice to meet OE oil clearances.
- Final Inspection: Heads are visually inspected. The surface finish, lash, bolt holes, and all other areas are inspected to ensure a quality cylinder head.
If you have any further question regarding our cylinder head services or how to get a quality cylinder head, contact us at 1-866-766-9955!
Warranty
Match head before installation! We will NOT warranty incorrect head installation.
Please call us immediately if you have any questions or concerns with your cylinder head purchase.
12 Months from time of purchase
First 3 Months warranty will consist of the following terms:
- Repair or Replacement of Cylinder Head.
- Supply of Gasket Set for Reinstallation.
- Labor time will be calculated from book time times $25.00 per hour. A maximum payout will not exceed 10 hours.
- Replacement of fluids and filters will be included in our warranty.
Remaining term of warranty will consist of the following:
- Repair or Replacement of Cylinder Head.
- Supply of Gasket Set for Reinstallation.
- Replacement of fluids and filter will be included.
- No LABOR will be given.
Warranty is VOID under any of the following conditions:
- Improper Installation.
- Overheating. Heat Tab melted or missing.
- Insufficient oiling to cylinder head.
- Faulty Cooling system operation.
Possible warranties are to be returned to Allied Motor Parts. Potential warranties are to be uncleaned and totally assembled. Any disassembly of cylinder head will VOID warranty. All warranties must be accompanied by proof of purchase.
No warranties on threaded bolt holes after installation.
The warranty described above shall be in lieu of any other warranty, expressed or implied, including, but not limited to, any implied warranty of merchantability of fitness for a particular purpose.
Compatible Vehicle
| MAKE | MODEL | YEAR | ENGINE |
|---|---|---|---|
| Buick | Commercial Chassis | 1992-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Buick | Roadmaster | 1992-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Cadillac | Brougham | 1990-1992 | 5.7L 350Cu. In. V8 GAS OHV |
| Cadillac | Commercial Chassis | 1992-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Cadillac | Fleetwood | 1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | Blazer | 1987-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | C10 | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | C10 Suburban | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | C1500 | 1988-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | C1500 Suburban | 1992-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | C20 | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | C20 Suburban | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | C2500 | 1988-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | C2500 Suburban | 1992-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | C30 | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | C3500 | 1988-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | C3500HD | 1991-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | Camaro | 1987-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | Caprice | 1986-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | Commercial Chassis | 1991-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | Corvette | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | Corvette | 1992 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | G10 | 1986-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | G20 | 1986-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | G30 | 1986-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | K10 | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | K10 Suburban | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | K1500 | 1988-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | K1500 Suburban | 1992-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | K20 | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | K20 Suburban | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | K2500 | 1988-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | K2500 Suburban | 1992-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | K30 | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | K3500 | 1988-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | K5 Blazer | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | P20 | 1986-1989 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | P30 | 1986-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | R10 | 1987 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | R10 Suburban | 1987-1988 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | R1500 Suburban | 1989-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | R20 | 1987-1988 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | R20 Suburban | 1987-1988 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | R2500 | 1989 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | R2500 Suburban | 1989-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | R30 | 1987-1988 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | R3500 | 1989-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | V10 | 1987 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | V10 Suburban | 1987-1988 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | V1500 Suburban | 1989-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | V20 | 1987 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | V20 Suburban | 1987-1988 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | V2500 Suburban | 1989-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | V30 | 1987-1988 | 5.7L 350Cu. In. V8 GAS OHV |
| Chevrolet | V3500 | 1989-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | C1500 | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | C1500 | 1988-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | C1500 Suburban | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | C1500 Suburban | 1992-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | C2500 | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | C2500 | 1988-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | C2500 Suburban | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | C2500 Suburban | 1992-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | C3500 | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | C3500 | 1988-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | C3500HD | 1991-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | G1500 | 1986-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | G2500 | 1986-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | G3500 | 1986-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | Jimmy | 1986-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | K1500 | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | K1500 | 1988-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | K1500 Suburban | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | K1500 Suburban | 1992-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | K2500 | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | K2500 | 1988-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | K2500 Suburban | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | K2500 Suburban | 1992-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | K3500 | 1986 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | K3500 | 1988-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | P2500 | 1986-1989 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | P3500 | 1986-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | R1500 | 1987 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | R1500 Suburban | 1987-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | R2500 | 1987-1989 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | R2500 Suburban | 1987-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | R3500 | 1987-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | V1500 | 1987 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | V1500 Suburban | 1987-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | V2500 | 1987 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | V2500 Suburban | 1987-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | V3500 | 1987-1991 | 5.7L 350Cu. In. V8 GAS OHV |
| GMC | Yukon | 1992-1993 | 5.7L 350Cu. In. V8 GAS OHV |
| Oldsmobile | Custom Cruiser | 1992 | 5.7L 350Cu. In. V8 GAS OHV |
| Pontiac | Firebird | 1987-1993 | 5.7L 350Cu. In. V8 GAS OHV |
Not sure this is your casting? Call 866-766-9955 with your casting number and your vehicle's year, make and engine, and we'll confirm it before you buy.
Process & Warranty
Cylinder Head Rebuilding Process
1. Initial Inspection: As a unit comes to our shop, we give it an initial inspection to determine whether there is any reason the head should not proceed to rebuilding. This quickly catches problems such as cracks, casting damage and other conditions that would halt the process for that casting.
2. Teardown: The cylinder head is fully disassembled, which reveals other areas of potential damage to the casting. The parts and the head are separated and go through different cleaning processes.
3. Cleaning: Cast iron heads are cleaned in a thermal cleaning system — baked at 600° to reduce grease and oil to ash, then put through a steel-shot machine for a brilliant finish. Aluminum heads are baked at a lower temperature or put through a high-pressure wash, then glass-beaded.
4. Head Inspection: After cleaning, heads are pressure tested or Magnafluxed to find any cracks. All bolt holes, valve guides, valve seats and other areas are inspected for broken bolts, broken taps, cracked guides and other impairments. Straightness and cam bore wear are also checked.
5. Machining: All heads have guides installed to meet OE conditions and are resurfaced to far exceed factory specifications for surface finish. A three-angle valve job achieves valve seat runout under .001". Valves are ground for a perfect seal between valve and seat.
6. Assembly: New OE-style valve guide seals are installed. Springs are tested for proper seat pressure. Valve seat sealing is vacuum-checked for an airtight fit. Lifters are bled and rebuilt for zero lash after startup. Cams are polished and clearances are checked twice to meet OE oil clearances.
7. Final Inspection: Every head is visually inspected — surface finish, lash, bolt holes and all other areas — to ensure a quality cylinder head.
Questions about our cylinder head services? Call 1-866-766-9955.
Warranty — 12 months from purchase
Match the head before installation. We will not warranty an incorrectly installed head. Call us immediately with any questions or concerns about your purchase.
First 3 months:
- Repair or replacement of the cylinder head.
- Gasket set supplied for reinstallation.
- Labor calculated from book time at $25.00 per hour, up to a maximum of 10 hours.
- Replacement of fluids and filters.
Remaining 9 months:
- Repair or replacement of the cylinder head.
- Gasket set supplied for reinstallation.
- Replacement of fluids and filters.
- No labor is covered.
Warranty is void if:
- The head was improperly installed.
- The head was overheated (heat tab melted or missing).
- The head received insufficient oiling.
- The cooling system operated improperly.
Warranty returns must be sent to Allied Motor Parts uncleaned and fully assembled — any disassembly voids the warranty — and must be accompanied by proof of purchase. There is no warranty on threaded bolt holes after installation.
This warranty is in lieu of any other warranty, expressed or implied, including any implied warranty of merchantability or fitness for a particular purpose.
Quality Assurance
Here’s why our cylinder heads stand out:
Thorough Inspection: Every head undergoes a complete teardown, cleaning, and detailed inspection for cracks and imperfections.
Advanced Cleaning: Thermal cleaning for cast iron and high-pressure washing for aluminum ensures a brilliant finish.
Precision Machining: CBN resurfacing, triple-angle valve cuts, and guide installations exceed OEM specifications.
Rigorous Testing: Vacuum tests, tension checks, and pressure tests guarantee performance and durability.
High-Quality Components: New seals, plugs, and rebuilt lifters ensure optimal functionality.
Final Assurance: Each head is inspected, stamped, and stored in a climate-controlled environment.
Wide Availability: Over 2,000 cylinder heads for all makes and models, ready for repair or exchange.
heads looked very good
Great rebuild on the heads.
Great
this was the second time i used allied for a cylinder head again the customer service on the telephone was very good and again my part came very quickly thank you allied i highly recommend allied for your engine part needs sincerely Richard m Stevens from Lake Zurich Illinois
Fast service
Thank you for your order!





