Triumph TR8 4 Barrel Carb Conversion Kits

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Part No.: GRID006140

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The legendary Holley is an ideal choice for all engines up to 4.6 litres.
Supplied jetted to suit the standard 3.5 litre engine (primary jet 51, secondary
equivalent to 53 jet), it can be re-jetted to suit modified or larger capacity engines.
An adaptor plate kit is available for enlarging secondary jets.
The Edelbrock Performer Dual Plane Inlet Manifold offers up to 10 BHP over
other 4 barrel manifold options at high mid-range, with increased torque over
a wide RPM range, especially from idle to to mid-range.
It also offers excellent throttle response.
Due to its height, it may not offer sufficient under bonnet clearance where space is tight.
Kit Includes:
Holley 390cfm 4 Barrel Carb with Manual Choke
Edelbrock Dual Plane Inlet Manifold
14" Chrome Pancake Air Cleaner - 3" Deep (K&N Filter available at extra cost)
Thermostat Housing
Accelerator & Choke Cables

A Facet Fuel Pump (RB7259) is recommended (sold separately).
For Automatic Borg Warner SD1, a Kickdown kit (RTC117HOLLEY) is also available for the Holley kit.
-
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RB77222WD
Out of stock, expected soon Jan 03, 2025. Add to cart and Back Order
£1,200.00 ex VAT£1,440.00 inc UK VAT
Quantity
The legendary Holley is an ideal choice for all engines up to 4.6 litres.
Supplied jetted to suit the standard 3.5 litre engine (primary jet 51, secondary equivalent to 53 jet), it can be re-jetted to suit modified or larger capacity engines.
An adaptor plate kit is available for enlarging secondary jets.
The Edelbrock Performer Dual Plane Inlet Manifold offers up to 10 BHP over other 4 barrel manifold options at high mid-range, with increased torque over a wide RPM range, especially from idle to to mid-range.
It also offers excellent throttle response.
Due to its height, it may not offer sufficient under bonnet clearance where space is tight.

Kit Includes:
Holley 390cfm 4 Barrel Carb with Manual Choke
Edelbrock Dual Plane Inlet Manifold
14" Chrome Pancake Air Cleaner - 2" Deep (K&N Filter available at extra cost)
Air Cleaner Spacer (1/2") for linkage clearance
Thermostat Housing
Accelerator & Choke Cables

A Facet Fuel Pump (RB7259) is recommended (sold separately).
For Automatic Borg Warner SD1, a Kickdown kit (RTC117HOLLEY) is also available for the Holley kit.
-
Rate and Review this Product
RB77222WDLOW
In stock
Most orders placed now ship next business day!
£1,225.00 ex VAT£1,470.00 inc UK VAT
Quantity
Previously marketed as Weber, the increased capacity Edelbrock 4 barrel 500cfm carb is best suited to larger capacity engines (4.6 litres +) but can be fitted to any Rover V8.
Supplied jetted to suit the standard 3.5 / 3.9 litre engine (primary jet .086, secondary .095, metering rods .065x.052 jet).
A tuning / calibration kit is also available for larger capacity and / or modified engines, which includes assorted jets and metering rods.
The Offenhauser JWR Dual Port Inlet Manifold offers the lowest profile where under bonnet clearance is restricted.
The dual ports design offers increased efficiency due to the primaries using the lower port (increasing gas speed) and since the secondaries use the upper port (which is shielded by the primaries), the gas is cooler, meaning a better fuel burn.
These benefits help to offset the efficiency lost due to the low profile design.

Kit Includes:
Edelbrock 500cfm 4 Barrel Carb with Manual Choke
Offenhauser JWR Dual Port Inlet Manifold
14" Chrome Pancake Air Cleaner - 2" Deep (K&N Filter available at extra cost)
Air Cleaner Spacer (1/2") for linkage clearance
Fuel Feed Banjo & Bolt
Thermostat Housing
Accelerator & Choke Cables.

A Facet Fuel Pump (RB7259) is recommended (sold separately).
-
Rate and Review this Product
RA13232WDLOW
This part has been superseded
Use RA13232WD

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Product Description

Triumph TR8 4 Barrel Carb Conversion Kits
4 Barrel Carb Conversion

The simple, cost effective, bolt-on performance upgrade that is a direct replacement for the twin Stromberg or SU carbs, offering easy starting, smooth running, transformed drive-ability and enhanced fuel economy.
A 4 barrel conversion will work well on its own, or in conjunction with an uprated cam or cylinder heads and can be re-jetted to suit if required.
Often the ideal solution for V8 conversions too, for TR7, MGB, Kit Cars etc where under bonnet space is at a premium.
We offer several conversion kits for just about all applications and engine sizes, utilising either the Holley 390 or Edelbrock 500 carb paired with an inlet manifold and air cleaner to suit your requirements.
Our conversion kits also include accelerator / choke cable kits and thermostat housing.

To decide on what suits, select a carb, inlet manifold and air cleaner, then refer to the kits shown.
Also, you will need to consider an uprated fuel pump (RB7259 Facet Pump is recommended).