Porsche > 911 & 912 (1965-1989) > 911 1978-1989 3.3L Turbo (930) > Performance Parts >

Engine Modifications & Upgrades

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High performance valve spring, seat and retainer kit 9mm. Porsche 911 / 964

Code: HP109HSSKIT

High performance valve spring, seat and retainer kit 9mm.

aasco

Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994

Our Valve Springs are designed and manufactured to specifically fit the envelope of a Porsche application not a spring from another use.

It operates a higher natural frequency than the original spring for racing and at the very least minimizes damage from over rev in track day situations.

Kit includes
High performance valve spring x 12
High performance valve spring seat x 12
High performance 9mm titanium valve spring retainer disc x 12

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

HP109HSSKIT

90110590150

90110590151

90110546300

90110546303

90110542103

90110542104

90110552102

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About this kit

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Brey Krause Engine Carrier Mount. Porsche 911 1964-89

Code: R-9055

Brey Krause Engine Carrier Mount.

breykrause

For Porsche 911 1964-89

OEM carrier mount units can experience fatigue failures at the welds from increased G loads while cornering and threshold braking at the track. The R-9055 Engine Carrier Mount counteracts these forces using a reinforced gusset design and high-quality materials.

Material: Type 304 stainless steel
Finish: Powder-coated in durable red finish
Weight: 3.8 lbs.
Models: Fits Porsche 911 ('64-'89).
Installation: Works with solid or rubber motor mounts; new mounting bolts supplied.
Miscellaneous: Replaces OEM Unit

For Installation instructions please CLICK HERE

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Cranksahft Pulley for Porsche 911 76-89

Code: 3609001403

Billet alloy crankshaft single belt pulley.
For cars without Air conditioning

rohler

Fits:
Porsche 911 1976-89

Diameter: 126mm

Replacement for following Porsche OE numbers 93010202801, 93010202809, 93010202804, 93010202808, 93010212602, 93010202301, 93010202303, 93010202305, 93010201704, 93010201707,

Billet Aluminum Crankshaft Pulley for Single Belt Conversion is a meticulously crafted and high-performance automotive component. Engineered from premium-quality aluminum billet, it offers superior strength and durability. This precision-designed pulley is specifically tailored for single belt conversions, providing seamless power transfer and optimal performance. Its lightweight construction ensures reduced rotational mass, resulting in improved engine responsiveness and enhanced overall driving experience. Upgrade your Porsche with this exceptional crankshaft pulley, and enjoy the perfect balance of style and functionality.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

3609001403

93010202801

93010202809

93010202804

93010202808

93010212602

93010202301

93010202303

93010202305

93010201704

93010201707

3609001403

The product you are viewing cross references to these numbers

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Emission plugs. Porsche 911 / 930 / 965

Code: 91121100000

To blank air injectors when removing the air pump on 911's, 930's & 965's

retroline

Sold as a set of 6.

We would recommend using some form of thread lock on these.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91121100000

91121100000

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Engine / gearbox mounts with HD 85A shore rating sport bushes. Porsche 911 1976-86

Code: 3609309111

Engine / gearbox mounts (SET OF 2) HD 85A shore rating sport bushes

rohler

New sport version with shifter rubber mounts, great for track days and high speed driving. Fits engine mounts OR transmission mounts ,shifting for more smoother and exact shifting.

You will need 2 for the engine 3.0L or 3.2L
You will need 2 for the G15 transmission not G50 Gearbox

Fits:
Porsche 911 1976-86
Porsche 911 Cabrio 1978-86

Click picture for large parts diagram.
Diagram Ref No 8.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

3609309111

91137504307

91137504306

91137504300

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Engine case hardware set, titanium. Porsche 911 / 964 / 993

Code: SL-EC-

Engine case hardware set, titanium.

Air-cooled Porsche 911 complete engine case hardware kit in high-strength high-purity Titanium alloy.

Includes studs:
For 911
Ti Alloy studs x 57
12 Point Ti Alloy Lock Nuts x 57

For 964/993
Ti Alloy studs x 62
12 Point Ti Alloy Lock Nuts x 62

Porsche Motorsports employed titanium alloy engine case fasteners on many of their famous race cars, including the 904, 908, 935, 962, and some modern LMP2.

silverlake

Fits:
Porsche 911 3.0ltr / 3.3ltr
Porsche 964
Porsche 993

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Engine case through bolt set, titanium. Porsche 911 / 964 / 993

Code: SL-TB-

Engine case through bolt set, titanium.

Kit Contents
Ti Alloy Studs x 11
Ti Alloy Washers x 22
Ti Alloy 12-point Nuts x 11

Porsche Motorsports employed titanium alloy engine case fasteners on many of their famous race cars, including the 904, 908, 935, 962, and some modern LMP2.

silverlake

Fits:
Porsche 911
Porsche 964
Porsche 993

Air-cooled Porsche 911 engine case through bolts in high-strength high-purity Titanium alloy. Including studs, washers, and nuts.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

SL-TB-

90110117300

90110116103

99907000403

93010117306

93010117201

95910117200

95910117302

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Engine motor carrier RSR Style Stainless Steel Porsche 911/930 / 964

Code: M01RS

Rennline RSR Style Stainless Steel Engine Carrier.

Fits:
Porsche 911/930 1965-89 Coupe And Targa
Porsche 964 Turbo 1990-93*

Adding solid or semi-solid motor mounts is a very popular upgrade for any 911 that is driven the way it was intended to be. Unfortunately the factory mild steel engine carrier is very weak and flexable, defeating the purpose of upgraded mounts. Rennline's RSR Style stainless steel engine carrier eliminates that flex due to its upper and lower horizontal flanges replicating those on the factory RSR race cars. Additionally, the Rennline mount incorporates gusseted mounting points built to withstand extreme horsepower and race abuse. This engine mount is by far the strongest engine brace on the market today.

* 964 Turbo's will require aftermarket or RS engine mounts with m12x1.5 threaded bolt.

Note: Pictures may not show actual product.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

M01RS

93037501101

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Engine motor mounts adjustable semi-solid SET OF 2. Porsche 911/930

Code: M24

Rennline Tunable Semi-Solid Engine Mount (Pair).

Fits:
Porsche 911/930

The Rennline Tunable Engine Mount for the 911/930 offers the ultimate in adjustability for your car. Replacing your compliant factory mounts will decrease engine movement resulting in better acceleration, handling and significantly increased shifter feel. This is the ultimate solution for almost any car, and allows you to tune our mounts for the way you drive. Our mounts are CNC machined from billet aluminum and include three pairs of inserts in varying densities. Tune your mounts by using the softer inserts to reduce engine slop and avoid missed shifts in your street car, or utilize the stiffest inserts to get the most from a more focused track car. You can even mix and match, giving you 9 possible combinations to let you dial in our mount to your specifications. Here at Rennline we know you want your Porsche to be flawless, and that is why we are Driven to Improve Excellence.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

M24

993375049

99337504908

96437504381

99337504909

96537504900

96537505000

99637504991

99737504908

99737504907

997375049

996375049

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Oil backflow prevention kit. Porsche 911 / 930

Code: 930113300

Oil backflow prevention kit.

Sold as a complete kit. 1 necessary per car.

koblenz

This oil backflow kit incorporates a check valve between the oil tank and engine which prevents smoking on start up for 911 and 930 models from 1973-89.

The issue is due to the oil tank sitting higher than the engine oil pump. Gravity creates a positive pressure on the pump and slowly fills the engine case with time. Once the car is started, the cars smokes heavily

Our complete kit includes a model specific check valve with upgraded suction hoses and stainless-steel clamps ready for installation.

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Rennline Stainless Steel Alternator Strap. Porsche 911/930

Code: M03

Rennline Stainless Steel Alternator Strap.

Fits:
Porsche 911/930 All 1965-89

We have redesigned our alternator straps for a sleeker look and simpler install. On most older 911's, the cadmium-plated alternator housing strap looks worse for the wear - the plating has become dull or corroded. The factory alternator housing strap can't be replaced without removing the ignition distributor, which necessitates resetting the engine's timing. Rennline's new alternator housing strap solves both problems: the brushed stainless steel perforated strap can be left as is or painted the color of your choice, and its unique 3 piece design makes installation easy to accomplish without touching the distributor. Comes with stainless steel hardware.

Note: Pictures may not show actual product.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

M03

96410625120

90110625102

90110625103

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Throttle pedal assembly, electronic. Porsche 911 1973 to 1989

Code: 91142311103/1

Throttle pedal assembly, electronic (Fly-by-Wire)

adapt

Fits:
Porsche 911 - 1973 to 1989
For G Model cars
Porsche 930

Our direct mount electronic throttle (fly-by-wire) assembly mounts to the factory pedal box studs. The pedal assembly has +/-10mm lateral adjustment to bring the pedal closer or further away to the brake pedal, as well as +/- 10mm adjustment longitudinally to adjust the pedal position relative to the brake pedal when depressed to optimise heel toe driving.
The pedal assembly is manufactured from 3D printed nylon with an adjustable height foot to ensure the best fitment to any floor level variation.
Included in the kit is the 2 piece pedal mount as well as an OEM throttle pedal assembly and correctly keyed plug with pins and seals ready to be wired to your ECU.

Wiring is not included in the kit.

With its simple two bolt mount, and infinitely flexible adjustable foot, this drive-by-wire kit could be used in a large range of other vehicle applications.
Fits Left Hand Drive and Right Hand Drive models

Please Note:
For LHD cars, you might need to trim a steel tab mounted to the tunnel.
The pedal backplate will need to be trimmed to match the larger pedal assembly, this might also include the pedal carpet as well.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91142311103

91142311103

91142311102

90142301000

90142301001

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Valve spring kit high performance. Porsche 911 / 964 / 993

Code: HP109

Valve spring kit - high performance.

aasco

Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

Our Valve Springs are designed and manufactured to specifically fit the envelope of a Porsche application not a spring from another use.

It operates a higher natural frequency than the original spring for racing and at the very least minimizes damage from over rev in track day situations.

Please note
993 - must use 8mm Ti retainers and Aasco Seats

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

HP109

90110590150

90110590151

99310590151

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Valve spring retainer disc kit 9mm Titanium high performance. Porsche 911 / 964

Code: HP10T9

9mm Titanium valve spring retainer disc kit - high performance.

aasco

Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994

9mm Porsche 911 titanium valve spring retainers for 9mm valves.

Can be used to directly replace OE retainers but we recommend using in conjunction with Aasco HP109 valve springs and HPSS spring seats.

Set of 12

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

HP10T9

90110542103

90110542104

90110552102

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Valve spring seat kit high performance. Porsche 911 / 964 / 993

Code: HPSS

Valve spring seat kit - high performance.

aasco

Fits:
Porsche 911 - 1965 to 1989
Porsche 964 - 1989 to 1994
Porsche 993 - 1994 to 1998

Our Steel Spring Seats pocket the inner spring of our Aasco High Performance Valve Springs.

Our Valve Springs are designed and manufactured to specifically fit the envelope of a Porsche application not a spring from another use.

It operates a higher natural frequency than the original spring for racing and at the very least minimizes damage from over rev in track day situations.

Please note
993 - must use 8mm Ti retainers and Aasco Seats

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

HPSS

90110546300

90110546303

99310546302

The product you are viewing cross references to these numbers