The Billet 4 is Hi Spec’s most popular four piston caliper. The body and pistons are machined from 6082 T6 billet aluminium, with external dust boots to keep dirt out, so it needs very little looking after on a road car. This kit uses the radial mount version of the caliper.
A bolt-on front big brake conversion for the Ford Escort Mk1 and Mk2 RS models, Capri Mk1 to Mk3 and Cortina Mk2, built around 310mm x 28mm two piece discs on alloy bells and the Billet 4 Radial caliper. Minimum wheel size is 16 inch, and as always check your own wheels clear the caliper before ordering.
Fits:
- Ford Escort Mk1 Twin Cam 1968-1971
- Ford Escort Mk1 Mexico 1970-1974
- Ford Escort Mk1 RS1600 1970-1974
- Ford Escort Mk1 RS2000 1973-1974
- Ford Escort Mk2 1.1/1.3/1.6 OHV 1975-1980
- Ford Escort Mk2 RS Mexico 1975-1978
- Ford Escort Mk2 RS1800 1975-1977
- Ford Escort Mk2 RS2000 1976-1980
- Ford Capri Mk1 1969-1974
- Ford Capri Mk2 1974-1978
- Ford Capri Mk3 1978-1986
- Ford Cortina Mk2 1600E & GT 1967-1970
- Ford Lotus Cortina Mk2 1966-1970
In the kit:
- Pair of Billet 4 Radial calipers
- Caliper mounting brackets
- Pair of grooved discs, 310mm x 28mm
- Alloy mounting bells
- Fitting hardware
Specification:
- Caliper body: 6082T6 billet aluminium
- Pistons: Hard anodised billet aluminium
- Pad swept area: 95.68 x 50.77mm
- Weight (approx): 1700g
- Hydraulic thread: M10x1.0
Brake pads and braided hoses are not included. Drop us an email or click to open a chat and we will match the right pads and hoses to this kit. Standard finish is black anodised. It can also be ordered in blue, silver, red or gold at extra cost, which adds to the build time.
All Hi Spec calipers and discs are made to order in the UK, so please allow up to 28 working days. The image shows the Billet 4 caliper and may not match the exact parts supplied.
Which kit would you actually recommend for this car?
We wrote it up properly: Our Top Recommended Big Brake Upgrade Kits For Your Ford Escort MK2 compares the kits we rate for this car across budgets. Worth five minutes before you decide.
Will it fit my car?
This kit is built for the Ford Escort Mk1/2 / Capri / Cortina Mk2, front axle. The generation and variant matter, as hub design and caliper brackets are car-specific even when the disc size looks the same. If your car has been modified or sits near a model change, send us the registration and we will confirm the exact kit before you order.
Will it clear my wheels?
Hi Spec quote a minimum wheel size of 16in for this kit. Spoke shape and offset decide the real clearance at that size, so send us your wheel size, offset and make, ideally with a photo, and we will check before you order.
What is in the kit?
Pair of Billet 4 Radial calipers, caliper mounting brackets, pair of grooved discs, 310mm x 28mm, alloy mounting bells and fitting hardware. Brake pads and braided hoses are not included, so tell us how the car is used and we will match the right pads and hoses to this kit.
What is the Billet 4 caliper?
The Billet 4 is Hi Spec's most popular four piston caliper. The body and pistons are machined from 6082 T6 billet aluminium, with external dust boots to keep dirt out, so it needs very little looking after on a road car. This kit uses the radial mount version of the caliper.
Which finish, and how long does it take?
Standard finish is black anodised. It can also be ordered in blue, silver, red or gold at extra cost, which adds to the build time. Every Hi Spec caliper and disc is made to order in the UK, so allow up to 28 working days. If you need it for a set date, ask us before you order.
Which pad compound should I run?
It depends on use, not on the kit: fast road, track day and race compounds behave very differently when cold and when worked hard. Our guide on brake pad compounds explains the choices in plain terms, and if you are heading to a circuit, our track day brake prep guide covers pads, fluid and bedding in.
Do I need to upgrade the rear at the same time?
No. The front does the large majority of the braking, so a front kit alone is the normal first step and a balanced one. Upgrade the rear later if you want matched looks or you are building for sustained track work, and if the car has an electronic parking brake, read our guide on big brake kits and electronic handbrakes before planning that side.
Every brake kit here is built to order
We do not keep big brake kits on a shelf. Each one is put together for your car in the disc face, caliper colour and specification you choose when you order, so nothing is made until the order is placed. The site shows these as available because we can take the order and start it, not because it is boxed and waiting.
How long it takes
Brembo GT kits are made in Italy and run around six to eight weeks. Our UK built kits are quicker, and the exact time depends on the caliper and disc combination you pick. Ring us on 0115 647 8650 before you order and we will give you the current lead time for the kit you are looking at, not a general one.
Working to a date
If the car is booked in, or it is off the road, tell us the date when you call. We will tell you straight whether the kit will make it, and what the alternatives are if it will not.
Worth two minutes before you order
Wheel clearance catches people out. Send us your wheel make, size and offset and we will read it against the caliper clearance drawing first, because a kit that is already being built for you is not something we can simply swap.
