Services
12 bolt GM rearends are what we do. We specialize in rebuilding, repairing, restoring and modifying rearends. Both 10 and 12 bolt services are offered.
Do you like Chevy Inline 6's? We can help you with all of the modifications needed. We specialize in EFI, Turbo and performance modification.
12 bolt GM rearends are what we do. We specialize in rebuilding, repairing, restoring and modifying rearends. Both 10 and 12 bolt services are offered.
Do you like Chevy Inline 6's? We can help you with all of the modifications needed. We specialize in EFI, Turbo and performance modification.
12 Bolt rears
Many Chevelle, Camaro, and Impala 12 bolt housings in stock.
Head services Offered
A complete head can be worked up for your project. Best to contact me tom@12bolt.com
The standard package includes most items listed below. Cost for a standard package is around 1250.00 with exchange.
Installation of lump kit
Head dis assembly
Degrease/ Hot tank
Magnuflux for cracks
Shotblast
New guides/ Machine for seals/ ream to size
1.84 intake valve throat cut/ Cut seat
1.94 Intake valve throat cut/ Cut seat
Install hardened seats/ cut seat to height
Mill head .007 per cut ( may need multiple cuts)(typically .030 total)
Port intake/ exhaust ports
Pull factory press in studs
Mill rocker studs for 7/16 rocker studs
Open rocker arm slots for 3/8 pushrods(extra)
Performance valve job
Assembly/ Shim springs
Guide plates (3/8)(extra)
Performance springs
Performance valves
Performance retainers
We offer total services for rear-end work. From parts to repair we have your rear covered.
Prices: Delivered to lower 48 states
eaton posi 410.00
Yukon gears 190.00 for most ratios
complete install kit w/axle bearing seals 105.00
Yukon axles 195.00
1310 yoke 70.00
services include:
rebuilding/setup 200.00
tube straightening 100.00
ford ends install 200.00
blasting 40.00
degreasing internally 30.00
check your posi 50.00
A complete head can be worked up for your project. Best to contact me tom@12bolt.com
The standard package includes most items listed below. Cost for a standard package is around 1250.00 with exchange.
Installation of lump kit
Head dis assembly
Degrease/ Hot tank
Magnuflux for cracks
Shotblast
New guides/ Machine for seals/ ream to size
1.84 intake valve throat cut/ Cut seat
1.94 Intake valve throat cut/ Cut seat
Install hardened seats/ cut seat to height
Mill head .007 per cut ( may need multiple cuts)(typically .030 total)
Port intake/ exhaust ports
Pull factory press in studs
Mill rocker studs for 7/16 rocker studs
Open rocker arm slots for 3/8 pushrods(extra)
Performance valve job
Assembly/ Shim springs
Guide plates (3/8)(extra)
Performance springs
Performance valves
Performance retainers
We offer total services for rear-end work. From parts to repair we have your rear covered.
Prices: Delivered to lower 48 states
eaton posi 410.00
Yukon gears 190.00 for most ratios
complete install kit w/axle bearing seals 105.00
Yukon axles 195.00
1310 yoke 70.00
services include:
rebuilding/setup 200.00
tube straightening 100.00
ford ends install 200.00
blasting 40.00
degreasing internally 30.00
check your posi 50.00
