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#350661
G-Comp™ Suspension Big Block Chevy Engine Mount Spacer Kit
- Raises big block Chevy engines 1/2-inch for additional oil pan clearance
- Designed for use with standard or polyurethane 3-bolt SBC/BBC motor mounts
- Installs between block face and motor mount to raise engine
$111.99
/pair
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Product Summary
.894" Under Head Length, 3/8"-16 Thread Pitch, Steel
- Raises big block Chevy engines 1/2-inch for additional oil pan clearance
- Designed for use with standard or polyurethane 3-bolt SBC/BBC motor mounts
- Installs between block face and motor mount to raise engine
- Designed for big block Chevy engines in our G-Comp front suspensions, but can be used for any SBC/BBC fitment
- Clear zinc plated for corrosion resistance and mounting hardware is included
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Return PolicyG-Comp 350661 Details
G-Comp 350661 Details
- Raises engine 1/2 inch to provide oil pan clearance
- Zinc plated A36 plate steel ½-inch thick risers attach between engine block and mount
- Compatible with stock and aftermarket 3-bolt style big block Chevy motor mounts
- Can be used with small block Chevy engines for deep/custom pan clearance as well
- Includes all fasteners to mount to engine block and to attach BBC motor mount
- Designed for all bolt-in G-Comp and G-Comp X Edition front suspension packages
Provide Needed Clearance for Your Big Block Chevy When Using G-Comp Suspension
Our popular G-Comp and G-Comp X Edition bolt-in front suspensions are designed to use the standard 3-bolt SBC/BBC motor mount. This means that once you have the front clip installed in your Camaro, Nova, or Chevy II platform you can run either a small block Chevy (or even an LS with our LS motor mount adapter plates or a big block Chevy. While the SBC is often the easier and less expensive route to take, we know that there are many diehard BBC fans out there.
However, with the BBC option there are often clearance issues with certain oil pans and our crossmember. While you can obviously modify or fabricate a custom oil pan, we also know that many are looking for a simple bolt-in solution to this issue when it pops up (and it may even happen with certain SBC deep oil pans as well). To that end, we have created these BBC motor mount risers for those that need extra clearance. Crafted from 1/2-inch thick A36 plate steel and clear zinc coated for corrosion protection, they mount directly to your SBC or BBC engine block, providing relocated mounting holes for stock or polyurethane SBC motor mounts or BBC motor mounts. We include robust 3/8-16 mounting hardware to attach the motor mount adapters to your engine block and your motor mounts of choice to the adapters as well.
Guides & Documents
G-Comp 350661 Specifications
G-Comp 350661 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 350661 |
| Brand | G-Comp |
| GENERAL | |
| Under Head Length | .894" |
| Thread Pitch | 3/8"-16 |
| Overall Thickness | .504" |
| Hole Diameter | .399" |
| Material Type | Steel |
| Finish | Zinc Plated |
| Sold in Quantity | Pair |
Ratings & Reviews
5
3 Reviews
Customers commend the quality and clever design of our product. It has successfully solved engine-oil pan clearance issues in various vehicles, including a '67 El Camino and a '74 Nova. The product proves practical - lifting the engine and saving unnecessary fabrication time, compared to alternatives like adding washers or a plate beneath engine mounts. Its high material quality and precise alignment were hailed. Customers recommend it over competitors for its effective problem-solving capacity.
Ratings & Reviews
5
3 Reviews
Customers commend the quality and clever design of our product. It has successfully solved engine-oil pan clearance issues in various vehicles, including a '67 El Camino and a '74 Nova. The product proves practical - lifting the engine and saving unnecessary fabrication time, compared to alternatives like adding washers or a plate beneath engine mounts. Its high material quality and precise alignment were hailed. Customers recommend it over competitors for its effective problem-solving capacity.
5
3 reviews
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Perfect Fit for Big Block Chevelle
5.0
7 months ago
Suburban
Merriam, KS
Verified
I used the G-Comp Suspension Kit – Big Block Chevy Engine Mount Spacer Kit on my Chevelle with a big block, and it worked exactly as advertised. The spacers were well-machined, solid, and fit perfectly between the frame stands and mounts without any modification needed.
Would Recommend
Good design, well made, excellent hardware.
5.0
a year ago
Ziggy
Arizona
Verified
The inner tie rod ends were hitting the oil pan (SBC) of my 67 El Camino when the steering neared full lock position, denting the pan. I needed to raise the engine or modify the oil pan. Installing these spacers solved the oil pan problem, leaving only millimeters of clearance below the hood. I'm grateful these spacers are available. Just adding washers or a plate beneath the engine mounts would not work due to the misalignment created that way.
Would Recommend



Quality Part.
5.0
a year ago
Boneyard
NC
Verified
Used these with long mounts to solve oil pan clearance issues in a 1974 Nova we dropped a 396 into. The spacers with the long mounts lifted the motor right up saving us from having to do a lot of unnecessary fabricating and wasting time.
Would Recommend
Showing 3 of 3 reviews
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Fitment
Fitment
1965 Chevy Bel Air
396 Chevy Big Block V8
1966-1969 Chevy Bel Air
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Bel Air
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1975 Chevy Bel Air
454 Chevy Big Block V8
1965 Chevy Biscayne
396 Chevy Big Block V8
1966-1969 Chevy Biscayne
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Biscayne
402 Chevy Big Block V8
454 Chevy Big Block V8
1969 Chevy Brookwood
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Brookwood
402 Chevy Big Block V8
454 Chevy Big Block V8
1969 Chevy C10
396 Chevy Big Block V8
1970-1972 Chevy C10
402 Chevy Big Block V8
1973-1979 Chevy C10
454 Chevy Big Block V8
1968-1969 Chevy C10 Suburban
396 Chevy Big Block V8
1970-1972 Chevy C10 Suburban
402 Chevy Big Block V8
1973-1979 Chevy C10 Suburban
454 Chevy Big Block V8
1988 Chevy C15
454 Chevy Big Block V8
1990 Chevy C1500
454 Chevy Big Block V8
1991 Chevy C1500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 LS5
1992-1993 Chevy C1500
454 Chevy Big Block V8
1968-1969 Chevy C20
396 Chevy Big Block V8
1970-1972 Chevy C20
402 Chevy Big Block V8
1973-1987 Chevy C20
454 Chevy Big Block V8
1968-1969 Chevy C20 Suburban
396 Chevy Big Block V8
1970-1972 Chevy C20 Suburban
402 Chevy Big Block V8
1973-1986 Chevy C20 Suburban
454 Chevy Big Block V8
1991 Chevy C2500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 Chevy C2500
454 Chevy Big Block V8
1996-1997 Chevy C2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1992-1995 Chevy C2500 Suburban
454 Chevy Big Block V8
1996-1997 Chevy C2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1968-1969 Chevy C30
396 Chevy Big Block V8
1970-1972 Chevy C30
402 Chevy Big Block V8
1973-1986 Chevy C30
454 Chevy Big Block V8
1988-1990 Chevy C3500
454 Chevy Big Block V8
1991 Chevy C3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 Chevy C3500
454 Chevy Big Block V8
1996-1997 Chevy C3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1967 Chevy Camaro
Chevy Big Block V8 Mark IV 396 L35
Chevy Big Block V8 Mark IV 396 L78
1968-1969 Chevy Camaro
Chevy Big Block V8 Mark IV 396 L34
Chevy Big Block V8 Mark IV 396 L35
Chevy Big Block V8 Mark IV 396 L78
427 Chevy Big Block V8
1970-1972 Chevy Camaro
402 Chevy Big Block V8
1966-1969 Chevy Caprice
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Caprice
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1976 Chevy Caprice
454 Chevy Big Block V8
1965-1969 Chevy Chevelle
396 Chevy Big Block V8
1970-1972 Chevy Chevelle
402 Chevy Big Block V8
454 Chevy Big Block V8
1973 Chevy Chevelle
454 Chevy Big Block V8
1968 Chevy Chevy II
396 Chevy Big Block V8
1965 Chevy Corvette
396 Chevy Big Block V8
1966-1969 Chevy Corvette
427 Chevy Big Block V8
1970-1974 Chevy Corvette
454 Chevy Big Block V8
1966-1969 Chevy El Camino
396 Chevy Big Block V8
1970-1972 Chevy El Camino
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1975 Chevy El Camino
454 Chevy Big Block V8
1969 Chevy Estate
396 Chevy Big Block V8
427 Chevy Big Block V8
1970 Chevy Estate
402 Chevy Big Block V8
454 Chevy Big Block V8
1996-2000 Chevy Express 2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1996-2000 Chevy Express 3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1988-1990 Chevy G30
454 Chevy Big Block V8
1991 Chevy G30
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 Chevy G30
454 Chevy Big Block V8
1996 Chevy G30
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1965 Chevy Impala
396 Chevy Big Block V8
1966-1969 Chevy Impala
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Impala
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1976 Chevy Impala
454 Chevy Big Block V8
1969 Chevy K10
396 Chevy Big Block V8
1970-1972 Chevy K10
402 Chevy Big Block V8
1973-1974 Chevy K10
454 Chevy Big Block V8
1968-1969 Chevy K10 Suburban
396 Chevy Big Block V8
1970-1972 Chevy K10 Suburban
402 Chevy Big Block V8
1973-1974 Chevy K10 Suburban
454 Chevy Big Block V8
1968-1969 Chevy K20
396 Chevy Big Block V8
1970-1972 Chevy K20
402 Chevy Big Block V8
1973-1974 Chevy K20
454 Chevy Big Block V8
1968-1969 Chevy K20 Suburban
396 Chevy Big Block V8
1970-1972 Chevy K20 Suburban
402 Chevy Big Block V8
1973-1974 Chevy K20 Suburban
454 Chevy Big Block V8
1985 Chevy K20 Suburban
454 Chevy Big Block V8
1991 Chevy K2500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 Chevy K2500
454 Chevy Big Block V8
1996-1997 Chevy K2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1992-1995 Chevy K2500 Suburban
454 Chevy Big Block V8
1996-1997 Chevy K2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1968-1969 Chevy K30
396 Chevy Big Block V8
1970-1972 Chevy K30
402 Chevy Big Block V8
1977-1986 Chevy K30
454 Chevy Big Block V8
1988-1990 Chevy K3500
454 Chevy Big Block V8
1991 Chevy K3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 Chevy K3500
454 Chevy Big Block V8
1996-1997 Chevy K3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1969 Chevy Kingswood
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Kingswood
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1975 Chevy Laguna
454 Chevy Big Block V8
1965-1967 Chevy Malibu
396 Chevy Big Block V8
1973-1975 Chevy Malibu
454 Chevy Big Block V8
1970-1972 Chevy Monte Carlo
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1975 Chevy Monte Carlo
454 Chevy Big Block V8
1969 Chevy Nova
396 Chevy Big Block V8
1970 Chevy Nova
402 Chevy Big Block V8
1975-1990 Chevy P30
454 Chevy Big Block V8
1991 Chevy P30
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Mark IV 454 LS5
1992-1995 Chevy P30
454 Chevy Big Block V8
1996-1997 Chevy P30
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1972 Chevy P30 Van
402 Chevy Big Block V8
1973-1974 Chevy P30 Van
454 Chevy Big Block V8
1987-1988 Chevy R20
454 Chevy Big Block V8
1987-1988 Chevy R20 Suburban
454 Chevy Big Block V8
1989 Chevy R2500
454 Chevy Big Block V8
1989-1990 Chevy R2500 Suburban
454 Chevy Big Block V8
1991 Chevy R2500 Suburban
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1987-1988 Chevy R30
454 Chevy Big Block V8
1989-1990 Chevy R3500
454 Chevy Big Block V8
1991 Chevy R3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1969 Chevy Townsman
396 Chevy Big Block V8
427 Chevy Big Block V8
1970-1972 Chevy Townsman
402 Chevy Big Block V8
454 Chevy Big Block V8
1987-1988 Chevy V20 Suburban
454 Chevy Big Block V8
1990 Chevy V2500 Suburban
454 Chevy Big Block V8
1987-1988 Chevy V30
454 Chevy Big Block V8
1989-1990 Chevy V3500
454 Chevy Big Block V8
1991 Chevy V3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1975-1978 GMC C15
454 Chevy Big Block V8
1975-1978 GMC C15 Suburban
454 Chevy Big Block V8
1973-1974 GMC C15/C1500 Pickup
454 Chevy Big Block V8
1973-1974 GMC C15/C1500 Suburban
454 Chevy Big Block V8
1979 GMC C1500
454 Chevy Big Block V8
1979 GMC C1500 Suburban
454 Chevy Big Block V8
1975-1978 GMC C25
454 Chevy Big Block V8
1975-1978 GMC C25 Suburban
454 Chevy Big Block V8
1967-1970 GMC C25/C2500 Pickup
396 Chevy Big Block V8
1971-1972 GMC C25/C2500 Pickup
402 Chevy Big Block V8
1973-1974 GMC C25/C2500 Pickup
454 Chevy Big Block V8
1967-1970 GMC C25/C2500 Suburban
396 Chevy Big Block V8
1971-1972 GMC C25/C2500 Suburban
402 Chevy Big Block V8
1973-1974 GMC C25/C2500 Suburban
454 Chevy Big Block V8
1979-1986 GMC C2500
454 Chevy Big Block V8
1988-1990 GMC C2500
454 Chevy Big Block V8
1991 GMC C2500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 GMC C2500
454 Chevy Big Block V8
1996-2000 GMC C2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1979-1986 GMC C2500 Suburban
454 Chevy Big Block V8
1992-1995 GMC C2500 Suburban
454 Chevy Big Block V8
1996-1999 GMC C2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1975-1978 GMC C35
454 Chevy Big Block V8
1967-1970 GMC C35/C3500 Pickup
396 Chevy Big Block V8
1971-1972 GMC C35/C3500 Pickup
402 Chevy Big Block V8
1979-1986 GMC C3500
454 Chevy Big Block V8
1988-1990 GMC C3500
454 Chevy Big Block V8
1991 GMC C3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 GMC C3500
454 Chevy Big Block V8
1996-2000 GMC C3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1967-1970 GMC K25/K2500 Pickup
396 Chevy Big Block V8
1971-1972 GMC K25/K2500 Pickup
402 Chevy Big Block V8
1967-1970 GMC K25/K2500 Suburban
396 Chevy Big Block V8
1971-1972 GMC K25/K2500 Suburban
402 Chevy Big Block V8
1994-1999 GMC K2500 Suburban
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1977-1978 GMC K35
454 Chevy Big Block V8
1967-1970 GMC K35/K3500 Pickup
396 Chevy Big Block V8
1971-1972 GMC K35/K3500 Pickup
402 Chevy Big Block V8
1979-1986 GMC K3500
454 Chevy Big Block V8
1988-1990 GMC K3500
454 Chevy Big Block V8
1991 GMC K3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1992-1995 GMC K3500
454 Chevy Big Block V8
1996-2000 GMC K3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1987-1989 GMC R2500
454 Chevy Big Block V8
1987-1990 GMC R2500 Suburban
454 Chevy Big Block V8
1991 GMC R2500 Suburban
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1987-1990 GMC R3500
454 Chevy Big Block V8
1991 GMC R3500
Chevy Big Block V8 Mark IV 454 L19
Chevy Big Block V8 Gen 5 454 L19
1996-2000 GMC Savana 2500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1996-2000 GMC Savana 3500
Chevy Big Block V8 Gen 5 454 L19
Chevy Big Block V8 Gen 6 ZZ454 454
1971-1972 GMC Sprint
402 Chevy Big Block V8
454 Chevy Big Block V8
1973-1977 GMC Sprint
454 Chevy Big Block V8
1967 GMC Suburban
396 Chevy Big Block V8
402 Chevy Big Block V8

