Product Description
Camshaft (High Performance)
1994 GMC P3500 7.4L / 454 OHV V8 16V Chev. 4.250" Bore 71-00
#PN-ES1139R-134Camshaft - HP - ES1139R
Details Value Part number ES1139R Sizes available N/A
Dimensions
Attribute Value AttributeData .310 CatalogColumn Cam Lift Int.''
Attribute Value AttributeData .325 CatalogColumn Cam Lift Exh.''
Attribute Value AttributeData .527 CatalogColumn Valve Lift Int.''
Attribute Value AttributeData .553 CatalogColumn Valve Lift Exh.''
Attribute Value AttributeData 110 CatalogColumn C/L Int
Attribute Value AttributeData 118 CatalogColumn C/L Exh
Attribute Value AttributeData 2 CatalogColumn Stage
Attribute Value AttributeData 224 CatalogColumn .050'' Dur. Int.
Attribute Value AttributeData 232 CatalogColumn .050'' Dur. Exh.
Attribute Value AttributeData Hyd. CatalogColumn Lash Exh.''
Attribute Value AttributeData Hyd. CatalogColumn Lash Int.''
Attribute Value AttributeData Hyd. CatalogColumn Sleeve Type
Package detail
Attribute Value Package Size 2x2x23.25" Weight 10.25 lbs
Competitive interchange
Brand Part number Elgin E-1070-P FEL-PRO CS-1139R MAHLE 229-2305
Product notes
Camshaft Break-in Additive
Cam-Shield with ZDDP
(Zinc Di-Alkyl-Dithio-Phosphate)
Anti-wear chemistry is required in all engine oils to protect valve train components and other metal surfaces from wearing. TodayÂs passenger car engine oils do not contain enough ZDDP for proper engine protection during the break-in process.
EnginetechÂs ZDDP provides the additional protection that your remanufactured engine needs. EnginetechÂs ZDDP is super concentrated so that only a small amount is needed to treat your oil for new cam break-in.
EnginetechÂs ZDDP is THE premium concentrated (Zinc) anti-wear engine oil additive. Our specially formulated product is specifically designed to protect:
 Camshafts
 Valve Train Component
 Piston Ring & Cylinder Liner Contact Area (lifters, followers, pushrods, rockers, lifter bores) from premature wear caused by todayÂs oils.
Cam-Shield Paste Premium Molybdnum Disulfide
Camshaft Assembly Paste
Enriched with Cam-shield® Premium ZDDP Anti-wear Technology
Cam-Shield® brand premium Molybdenum Disulfide Camshaft Assembly Past provides fortified anti-wear protection for new camshafts during initial break-in.
 Cam-shield® Premium ZDDP concentration of 2500 parts per million (ppm) of Zink (the optimum ZDDP concentration for break-in).
 Use with all mechanical and hydraulic camshafts and lifters.
 Initiates proper cam break-in.
 Prevents galling.
 Excellent for racing, pro-street, street, classic, agricultural, diesel and marine camshafts.
Available in 3 sizes to meet the needs of all customers and businesses.
5/8-oz. Lube Pack
Treats one typical 8-cylinder engine camshaft and lifters.
 Single 5/8-oz. Lube Pack
 50 pack case
4-oz. Brush Top Jar
Treats up to 6 typical 8-cylinder engine camshafts and lifters.
 4-oz. brush top jar
 12 jar case
1-lb. Tub
Treats up to twenty-four (24) typical 8-cylinder engine camshafts and lifters.
 1-lb. tub
 12 tub case
Treat break-in oil with Cam-shield® Premium ZDDP Anti-wear oil treatment.
 Protect your racing engine from wear!
 Keep your engine's power level up!
 Get more races from your motor before rebuild time!
 Strongest Concentration!
 Best Technology!
 Best Value!
 Cam-Shield® The Performance Advantage!
Also fits
Category Make Model User engine Year range Notes Car GM 6.5L / 396 OHV V8 16V Chev. 4.094" Bore 65-70 65-70 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. Car GM 6.6L / 402 OHV V8 16V Chev. 4.125" Bore 70-72 70-72 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. Car GM 7.0L / 427 OHV V8 16V Chev. 4.250" Bore 66-69 66-69 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. Car GM 7.4L / 454 OHV V8 16V Chev. 4.250" Bore 70-76 70-76 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. HIGH PERFORMANCE GM 6.5L / 396 OHV V8 16V Chev. Big Block 4.094" Bore 65-70 65-70 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. HIGH PERFORMANCE GM 6.6L / 402 OHV V8 16V Chev. Big Block 4.125" Bore 72-72 72-72 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. HIGH PERFORMANCE GM 7.0L / 427 OHV V8 16V Chev. Mark IV Big Block 4.250" Bore 66-69 66-69 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. HIGH PERFORMANCE GM 7.4L / 454 OHV V8 16V Chev. Mark IV Big Block 4.250" Bore 70-90 70-90 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. HIGH PERFORMANCE GM 7.4L / 454 OHV V8 16V Chev. Mark V Big Block 4.250" Bore 91-97 91-97 Stage 2 high performance. Preferred latest computer design concepts in each application. Chain drive. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. HIGH PERFORMANCE GM 8.1L / 496 OHV V8 16V Chev. Mark IV Big Block Stroker 4.250" Bore 70-90 70-90 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. HIGH PERFORMANCE GM 8.1L / 496 OHV V8 16V Chev. Mark V Big Block Stroker 4.250" Bore 91-97 91-97 Stage 2 high performance. Preferred latest computer design concepts in each application. Chain drive. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. TRUCK, VAN, SUV GM, CHEVROLET 6.0L / 366 OHV V8 16V "B,P" GM 3.938" Bore 66-98 66-98 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. TRUCK, VAN, SUV GM, CHEVROLET 6.5L / 396 OHV V8 16V Chev. 4.094" Bore 66-69 68-69 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. TRUCK, VAN, SUV GM, CHEVROLET 6.6L / 402 OHV V8 16V Chev. 4.125" Bore 70-72 70-72 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. TRUCK, VAN, SUV GM, CHEVROLET 7.4L / 454 OHV V8 16V Chev. 4.250" Bore 71-00 71-95 Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118.
Vehicle-Specific Engine Part Information
1994 GMC P3500 7.4L Camshaft (High Performance) Enginetech ES1139R. This camshaft (high performance) is listed for the 1994 GMC P3500 7.4L engine application. Match the engine configuration and manufacturer part number before ordering parts for your rebuild or repair.
Manufacturer application notes: Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. Stage 2 high performance. Preferred latest computer design concepts in each application. Chain drive. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118.
For a 1994 GMC P3500 7.4L engine repair, the same part may be identified as 1994 GMC P3500 Engine Camshaft, GMC P3500 7.4L Engine Camshaft, Engine Camshaft for 1994 GMC P3500 7.4L. These vehicle-specific descriptions help distinguish the required camshaft (high performance) from other engine components used on similar vehicles.
Additional application-specific terminology includes 1994 GMC 7.4L Engine Camshaft, GMC P3500 Engine Camshaft, 7.4L GMC P3500 Engine Camshaft, 1994 GMC P3500 7.4L Replacement Camshaft. All of these references concern the same Enginetech ES1139R listing; they do not indicate extra components in the package.
Supplier-listed competitive interchange references: MAHLE 229-2305, FEL-PRO CS-1139R, Elgin E-1070-P. Interchange numbers are identification references, not a claim that another brand is supplied; confirm dimensions and fitment.
Whether you are refreshing a worn engine or completing a full rebuild of a 1994 GMC P3500 7.4L, selecting the right camshaft (high performance) depends on accurate engine identification. Check the engine code, relevant dimensions and any vehicle-specific installation restrictions against your existing components. This listing identifies Enginetech ES1139R; verify the correct configuration before purchasing.
Professional Engine Rebuilders offers this camshaft (high performance) for shoppers searching by the 1994 GMC P3500 7.4L application, Enginetech manufacturer number ES1139R, or the unique vehicle-specific listing number PN-ES1139R-134. Confirm fitment, selected sizes and exact package contents on the product page. Cross-reference part numbers are provided for identification and comparison, not as substitutes for fitment verification.
Camshaft - HP - ES1139R
| Details | Value |
|---|---|
| Part number | ES1139R |
| Sizes available | N/A |
Dimensions
| Attribute | Value |
|---|---|
| AttributeData | .310 |
| CatalogColumn | Cam Lift Int.'' |
| Attribute | Value |
|---|---|
| AttributeData | .325 |
| CatalogColumn | Cam Lift Exh.'' |
| Attribute | Value |
|---|---|
| AttributeData | .527 |
| CatalogColumn | Valve Lift Int.'' |
| Attribute | Value |
|---|---|
| AttributeData | .553 |
| CatalogColumn | Valve Lift Exh.'' |
| Attribute | Value |
|---|---|
| AttributeData | 110 |
| CatalogColumn | C/L Int |
| Attribute | Value |
|---|---|
| AttributeData | 118 |
| CatalogColumn | C/L Exh |
| Attribute | Value |
|---|---|
| AttributeData | 2 |
| CatalogColumn | Stage |
| Attribute | Value |
|---|---|
| AttributeData | 224 |
| CatalogColumn | .050'' Dur. Int. |
| Attribute | Value |
|---|---|
| AttributeData | 232 |
| CatalogColumn | .050'' Dur. Exh. |
| Attribute | Value |
|---|---|
| AttributeData | Hyd. |
| CatalogColumn | Lash Exh.'' |
| Attribute | Value |
|---|---|
| AttributeData | Hyd. |
| CatalogColumn | Lash Int.'' |
| Attribute | Value |
|---|---|
| AttributeData | Hyd. |
| CatalogColumn | Sleeve Type |
Package detail
| Attribute | Value |
|---|---|
| Package Size | 2x2x23.25" |
| Weight | 10.25 lbs |
Competitive interchange
| Brand | Part number |
|---|---|
| Elgin | E-1070-P |
| FEL-PRO | CS-1139R |
| MAHLE | 229-2305 |
Product notes
Camshaft Break-in Additive
Cam-Shield with ZDDP
(Zinc Di-Alkyl-Dithio-Phosphate)
Anti-wear chemistry is required in all engine oils to protect valve train components and other metal surfaces from wearing. TodayÂs passenger car engine oils do not contain enough ZDDP for proper engine protection during the break-in process.
EnginetechÂs ZDDP provides the additional protection that your remanufactured engine needs. EnginetechÂs ZDDP is super concentrated so that only a small amount is needed to treat your oil for new cam break-in.
EnginetechÂs ZDDP is THE premium concentrated (Zinc) anti-wear engine oil additive. Our specially formulated product is specifically designed to protect:
 Camshafts
 Valve Train Component
 Piston Ring & Cylinder Liner Contact Area (lifters, followers, pushrods, rockers, lifter bores) from premature wear caused by todayÂs oils.
Cam-Shield Paste Premium Molybdnum Disulfide
Camshaft Assembly Paste
Enriched with Cam-shield® Premium ZDDP Anti-wear Technology
Cam-Shield® brand premium Molybdenum Disulfide Camshaft Assembly Past provides fortified anti-wear protection for new camshafts during initial break-in.
 Cam-shield® Premium ZDDP concentration of 2500 parts per million (ppm) of Zink (the optimum ZDDP concentration for break-in).
 Use with all mechanical and hydraulic camshafts and lifters.
 Initiates proper cam break-in.
 Prevents galling.
 Excellent for racing, pro-street, street, classic, agricultural, diesel and marine camshafts.
Available in 3 sizes to meet the needs of all customers and businesses.
5/8-oz. Lube Pack
Treats one typical 8-cylinder engine camshaft and lifters.
 Single 5/8-oz. Lube Pack
 50 pack case
4-oz. Brush Top Jar
Treats up to 6 typical 8-cylinder engine camshafts and lifters.
 4-oz. brush top jar
 12 jar case
1-lb. Tub
Treats up to twenty-four (24) typical 8-cylinder engine camshafts and lifters.
 1-lb. tub
 12 tub case
Treat break-in oil with Cam-shield® Premium ZDDP Anti-wear oil treatment.
 Protect your racing engine from wear!
 Keep your engine's power level up!
 Get more races from your motor before rebuild time!
 Strongest Concentration!
 Best Technology!
 Best Value!
 Cam-Shield® The Performance Advantage!
Also fits
| Category | Make | Model | User engine | Year range | Notes |
|---|---|---|---|---|---|
| Car | GM | 6.5L / 396 OHV V8 16V Chev. 4.094" Bore 65-70 | 65-70 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| Car | GM | 6.6L / 402 OHV V8 16V Chev. 4.125" Bore 70-72 | 70-72 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| Car | GM | 7.0L / 427 OHV V8 16V Chev. 4.250" Bore 66-69 | 66-69 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| Car | GM | 7.4L / 454 OHV V8 16V Chev. 4.250" Bore 70-76 | 70-76 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| HIGH PERFORMANCE | GM | 6.5L / 396 OHV V8 16V Chev. Big Block 4.094" Bore 65-70 | 65-70 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| HIGH PERFORMANCE | GM | 6.6L / 402 OHV V8 16V Chev. Big Block 4.125" Bore 72-72 | 72-72 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| HIGH PERFORMANCE | GM | 7.0L / 427 OHV V8 16V Chev. Mark IV Big Block 4.250" Bore 66-69 | 66-69 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| HIGH PERFORMANCE | GM | 7.4L / 454 OHV V8 16V Chev. Mark IV Big Block 4.250" Bore 70-90 | 70-90 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| HIGH PERFORMANCE | GM | 7.4L / 454 OHV V8 16V Chev. Mark V Big Block 4.250" Bore 91-97 | 91-97 | Stage 2 high performance. Preferred latest computer design concepts in each application. Chain drive. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| HIGH PERFORMANCE | GM | 8.1L / 496 OHV V8 16V Chev. Mark IV Big Block Stroker 4.250" Bore 70-90 | 70-90 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| HIGH PERFORMANCE | GM | 8.1L / 496 OHV V8 16V Chev. Mark V Big Block Stroker 4.250" Bore 91-97 | 91-97 | Stage 2 high performance. Preferred latest computer design concepts in each application. Chain drive. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| TRUCK, VAN, SUV | GM, CHEVROLET | 6.0L / 366 OHV V8 16V "B,P" GM 3.938" Bore 66-98 | 66-98 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| TRUCK, VAN, SUV | GM, CHEVROLET | 6.5L / 396 OHV V8 16V Chev. 4.094" Bore 66-69 | 68-69 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| TRUCK, VAN, SUV | GM, CHEVROLET | 6.6L / 402 OHV V8 16V Chev. 4.125" Bore 70-72 | 70-72 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. | |
| TRUCK, VAN, SUV | GM, CHEVROLET | 7.4L / 454 OHV V8 16V Chev. 4.250" Bore 71-00 | 71-95 | Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. |
Vehicle-Specific Engine Part Information
1994 GMC P3500 7.4L Camshaft (High Performance) Enginetech ES1139R. This camshaft (high performance) is listed for the 1994 GMC P3500 7.4L engine application. Match the engine configuration and manufacturer part number before ordering parts for your rebuild or repair.
Manufacturer application notes: Stage 2 high performance.Preferred latest computer design concepts in each application. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118. Stage 2 high performance. Preferred latest computer design concepts in each application. Chain drive. Use hydraulic flat followers. .050" Duration-224/232; Cam Lift-.310/.325; Lobe Center-110/118.
For a 1994 GMC P3500 7.4L engine repair, the same part may be identified as 1994 GMC P3500 Engine Camshaft, GMC P3500 7.4L Engine Camshaft, Engine Camshaft for 1994 GMC P3500 7.4L. These vehicle-specific descriptions help distinguish the required camshaft (high performance) from other engine components used on similar vehicles.
Additional application-specific terminology includes 1994 GMC 7.4L Engine Camshaft, GMC P3500 Engine Camshaft, 7.4L GMC P3500 Engine Camshaft, 1994 GMC P3500 7.4L Replacement Camshaft. All of these references concern the same Enginetech ES1139R listing; they do not indicate extra components in the package.
Supplier-listed competitive interchange references: MAHLE 229-2305, FEL-PRO CS-1139R, Elgin E-1070-P. Interchange numbers are identification references, not a claim that another brand is supplied; confirm dimensions and fitment.
Whether you are refreshing a worn engine or completing a full rebuild of a 1994 GMC P3500 7.4L, selecting the right camshaft (high performance) depends on accurate engine identification. Check the engine code, relevant dimensions and any vehicle-specific installation restrictions against your existing components. This listing identifies Enginetech ES1139R; verify the correct configuration before purchasing.
Professional Engine Rebuilders offers this camshaft (high performance) for shoppers searching by the 1994 GMC P3500 7.4L application, Enginetech manufacturer number ES1139R, or the unique vehicle-specific listing number PN-ES1139R-134. Confirm fitment, selected sizes and exact package contents on the product page. Cross-reference part numbers are provided for identification and comparison, not as substitutes for fitment verification.
