Port Cylinder Head

modified
Nissan_L28_3_1L_Modified_N42_Cylinder_Head_Ported_Heart_Chamber_L6_Japan_01_gxjf

Nissan L28 3.1L Modified N42 Cylinder Head Ported Heart Chamber L6 Japan

Nissan L28 3.1L Modified N42 Cylinder Head Ported Heart Chamber L6 Japan Please refer to the photos and the following description for the item's condition and details. This is a tuned cylinder head based on the L28 N42, previously used on an L28 modified 3.1L engine. The combustion chambers have been reshaped into a heart shape through argon welding to improve combustion efficiency. The head has been machined for big valves measured approx. 45-46mm intake / 36mm exhaust and port polishing has been performed. However, there are pinholes present in the areas that were argon welded. The previous owner reported that the head was used without issues, but we have…
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7581_Norton_Commando_Combat_1972_Cylinder_Head_Exhaust_Ports_Modified_To_Fit_01_mt

7581 Norton Commando Combat 1972 Cylinder Head Exhaust Ports Modified To Fit

EXHAUST PORTS MODIFIED TO FIT TRIUMPH EXHAUST PORTS. USED - VERY GOOD CONDITION. PLEASE NOTE All Of My Items Can Be Collected, However, Most Are Now Stored Offsite At Another Companies Premisis. I May Thus Require Up To 4 Weeks Notice Before Some Parts Can Be Collected In Person. OVERSEAS CUSTOMERS PLEASE READ I DO NOT RESTRICT MY AUCTIONS TO UK ONLY CUSTOMERS, HOWEVER, SOME OF THE ITEMS I SELL ARE OVER 2KG AND AS SUCH NEED TO BE SENT PARCEL POST WHICH CAN BE EXPENSIVE.
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1966_Modified_Triumph_650_Cylinder_Head_New_Valves_Springs_Rebuilt_01_lzcl

1966 Modified Triumph 650 Cylinder Head New Valves, Springs, Rebuilt

1966 MODIFIED TRIUMPH 650 CYLINDER HEAD NEW VALVES, SPRINGS, REBUILT. Used 1966 Triumph 650 cylinder head that has just had a valve regrind on a cylinder head that very nice valve seats and had all its fins intact. New Black Diamond were fitted along with a new set of British manufacture valve springs. Exhaust stub fit is good and rocker box bolt threads all look good. Due to damage to one of the intake ports, competition style intake stubs that will accept 30, 32, and 34mm Mikuni VM carburators were installed. Get images that make Supersized seem small. Showcase your items with Auctiva's. Track Page Views With. This item is…
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A65_Bsa_Cylinder_Head_650_A65s_A65sa_A65l_A65f_Ported_Race_32mm_Modified_Ahrma_01_oukt

A65 Bsa Cylinder Head 650 A65s A65sa A65l A65f Ported Race 32mm Modified Ahrma

A65 BSA CYLINDER HEAD 650 A65S A65SA A65L A65F PORTED RACE 32MM MODIFIED AHRMA. WELDED EXHAUST STUBSBOLT ON 32 MM STUB MANIFOLDS40MM INTAKE VALVES37MM EXHAUST VALVES35MM EXHAUST PORTS. The item "A65 BSA CYLINDER HEAD 650 A65S A65SA A65L A65F PORTED RACE 32MM MODIFIED AHRMA" is in sale since Friday, November 19, 2021. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Engines & Engine Parts\Other Engines & Engine Parts". The seller is "bevelbillh3" and is located in Perrysburg, Ohio. This item can be shipped worldwide. Brand: BSA Warranty: No Manufacturer Part Number: 68-915
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RENAULT_WILLIAMS_CLIO_16V_HIGHLY_MODIFIED_PORTED_POLISHED_33mm_INLET_VALVES_01_pdai

RENAULT WILLIAMS CLIO /16V HIGHLY MODIFIED, PORTED, POLISHED& 33mm INLET VALVES

RENAULT CLIO WILLIAMS /. PHOSPHOR BRONZE VALVE GUIDES. RECENTLY ALL VALVE SEATS. NEW 33mm MEGANE INLET VALVES FITTED. CATCAM COMPETION VALVE SPRINGS. ALL RECENT WORK CARRIED OUT BY PROFESSIONAL RACE/RALLY COMPANIES. COMES COMPLETE WITH THE. CYLINDER HEAD COVER &. COVER HAS BEEN VAPOUR BLASTED. READY TO USE (NO CAMSHAFTS). ANY QUESTIONS PLEASE GET IN TOUCH. WILL DELIVER IN PERSON, WITHIN 50 MILES RADIUS OF BB18, OR CAN BE COLLECTED. The item "RENAULT WILLIAMS CLIO /16V HIGHLY MODIFIED, PORTED, POLISHED& 33mm INLET VALVES" is in sale since Sunday, August 29, 2021. This item is in the category "Vehicle Parts & Accessories\Car Parts & Accessories\Engines & Engine Parts\Cylinder Heads". The seller is…
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Yamaha_XSR700_MT_07_Ported_And_Polished_Modified_Cylinder_Head_MiniTwin_Race_01_kfza

Yamaha XSR700 MT-07- Ported And Polished Modified Cylinder Head MiniTwin Race

This was taken off a race bike. Cylinder head porting refers to the process of modifying the intake and exhaust ports to improve their air flow and if you are building a superbike-spec engine then a good cylinder head is the place to start. The ports have been contoured, re-shaped and polished for good flow across the valve lift and rpm spectrum. I was informed that the head came from a MiniTwin / Twins Cup "Superbike" (some people call them FZ-07R or MTR-07) so an actual race bike! The item "Yamaha XSR700 MT-07- Ported And Polished Modified Cylinder Head MiniTwin Race" is in sale since Tuesday, July 27, 2021. This…
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Edelbrock_OL4B_Aluminum_Intake_Modified_For_Oldsmobile_350_403_with_Big_Port_Heads_01_urg

Edelbrock OL4B Aluminum Intake Modified For Oldsmobile 350 403 with Big Port Heads

This is a vintage Edelbrock OL4B aluminum intake manifold that has been modified to be used on 350/403 Oldsmobile engines with big port/big block heads installed. I talked to an Olds enthusiast friend about this and he said this was a in the know hot rod trick since the Small Block engines, especially the 403 wanted bigger ports and this was the best way to make them wake up. The amount of labor that must have gone into making this intake what it is today much have been mind boggling and very expensive to produce. This intake is in very good condition as shown. The port matching is excellent as…
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Yamaha_XSR700_MT_07_Ported_And_Polished_Modified_Cylinder_Head_MiniTwin_Race_01_unm

Yamaha XSR700 MT-07- Ported And Polished Modified Cylinder Head MiniTwin Race

This was taken off a race bike. Cylinder head porting refers to the process of modifying the intake and exhaust ports to improve their air flow and if you are building a superbike-spec engine then a good cylinder head is the place to start. The ports have been contoured, re-shaped and polished for good flow across the valve lift and rpm spectrum. I was informed that the head came from a MiniTwin / Twins Cup "Superbike" (some people call them FZ-07R or MTR-07) so an actual race bike! The item "Yamaha XSR700 MT-07- Ported And Polished Modified Cylinder Head MiniTwin Race" is in sale since Monday, June 28, 2021. This…
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Triumph_Spitfire_Mk3_4_Herald_13_60_Cylinder_Ported_Modified_Race_Head_01_entx

Triumph Spitfire Mk3/4 Herald 13/60 Cylinder Ported Modified Race Head

Used head that was taken off a race / track car, it has been ported / ground down on all the inlet & exhaust ports. Has brand new core plugs. These heads are notorious for having lots of burrs and casting marks, this head has had all of the ports ground down to allow maximum flow. The head would probably benefit from a skim but could bolt straight on to any herald 13/60 , spitfire mk3 or potentially 1300 dolomite. Is a original head thats been taken off a mk3 small journal engine. The item "TRIUMPH SPITFIRE MK3/4 HERALD 13/60 CYLINDER PORTED MODIFIED RACE HEAD" is in sale since Tuesday,…
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