Minisport

Engine parts/accessories

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CENTRE MAIN STRAP 1275cc EXCEPT "S" INC BOLTS - CMS13

CMS13- CENTRE MAIN STRAP 1275cc EXCEPT "S" INC BOLTS

Fits solid block 1275 motors, not cooper S. if your engine starts with 12…. Then this is for you

Steel centre main strap for large bore engines, comes with longer high tensile bolts.

Main top cap needs machining flat, no other modifications required.

$42.73
($30.60 USD ) In stock

Mini/moke 1275 dowel for main cap (not on S engines) - 12G1268

12G1268- Mini/moke 1275 dowel for main cap (not on S engines)

Special round dowel that fits in the main bearing caps to locate correctly and ensure bolt goes through a casing where the surfaces meet. Sold singly 6 required per engine.

$13.59
($9.73 USD ) In stock

Mini 4 bolt 1275 centre main strap for 1275cc (except S) Inc bolts - C-AGA619

C-AGA619- Mini 4 bolt 1275 centre main strap for 1275cc  (except S) Inc bolts

Steel 4-bolt center main cap for large bore engines (not 'S'). Comes with correct length HT bolts. On all performance A series engines it is essential to ensure as accurate location of the center main bearing of the crankshaft as possible. Flex allowed here, especially at sustained high RPM levels, can cause spun bearings, crank or main cap breakage with severe or mortal damage to the engine. This specially machined cap provides the ultimate center main location, essential for all stroked engines. Requires line boring, and two extra holes drilled into the block and tapped 7/16" UNF. The thrust faces are part machined for final finishing while the line boring is being done. Bolts on one way only so take care to read instructions

$268.18
($192.05 USD ) In stock

MINI CON ROD BOLT 850/998/1100 (sold single) - 12G2217

12G2217- MINI CON ROD BOLT 850/998/1100 (sold single)

Standard con rod bolt for pre A Plus engines, but you can use later type rod bolts. Sold singly 8 required per engine

$22.68
($16.24 USD )

OUT OF STOCK

MINI & MOKE ARP CON ROD BOLT KIT 850/998/1100 - C-STR319

C-STR319- MINI & MOKE ARP CON ROD BOLT KIT 850/998/1100

Ultimate con rod bolt set from ARP in USA for 850/998/1100cc.

$226.36
($162.11 USD ) In stock

MINI CON ROD BOLT 1300 EXCEPT "S" GENUINE - LFH10006

LFH10006- MINI CON ROD BOLT 1300 EXCEPT "S" GENUINE

Most engine builders will tell you to replace the rod bolts as often as you can afford, but at least every other time you do the bottom end. If you don't know the last time, replace them. The LFH10006 bolt fits all 1275 motors, including Austin America and A-Plus, except the "S". Sold individually. THREAD SIZE 11/32 diameter 24TPI.

$11.77
($8.43 USD ) In stock

Mini ARP, 1275 (not cooper S) conrod bolt/nut set - C-STR289

C-STR289- CON ROD BOLT SET 1275cc NOT "S" ARP NUT/BOLT SET

These con rod bolt and nut set are made by ARP in the USA and considered the best avaialble FITS 1300 con rods plus MGB late 18V engine numbers with 11-32" bolts

$244.55
($175.13 USD ) In stock

Mini ARP cooper S conrod bolt/nut set - C-STR288

C-STR288- CON ROD BOLT SET "S" APT SET OF BOLTS/NUTS

These are made by ARP in the USA and considered the best avaiable. This nut and bolt set also fit sprite and Midget in line engines.

$244.55
($175.13 USD ) In stock

MAINS STUD COOPER "S" (set 2 long 4 short) - AEG323

AEG323- MAINS STUD "S"(set 2 long 4 short)

Cooper S set of mains studs, 2 long 4 short.

$100.00
($71.61 USD ) In stock

MAINS BOLT 1300 - 7/16" x 2.75" LONG - 12G1398

12G1398- MAINS BOLT 1300 - 7/16" x 2.75" LONG

I've never broken a main bearing cap bolt, but then when I build a high performance engine I like to replace them as they stretch. Sold singly 6 required per engine.

$9.05
($6.48 USD ) In stock

MINI COOPER S ARP MAINS NUT SET OF 6 - COOPER S ONLY - C-AJJ4013

C-AJJ4013- MINI COOPER S ARP MAINS NUT SET OF 6 - COOPER S ONLY

Special "S" main bearings nut set (6).7/16"AF thread. 

$81.77
($58.56 USD ) In stock

MED VERNIER CAMBELT DRIVE KIT - MED00001

MED00001- MED VERNIER CAMBELT DRIVE

The latest evolution of MED cambelt kit for all A-Series engines, road to full race.

$813.64
($582.67 USD ) In stock

REPLACEMENT BELT FOR TIMING BELT KITS - BELTBELT

Replacement timing belt for the timing belt conversion kits. 52 tooth type- Fits almost all models

$50.00
($35.81 USD ) In stock

OIL SEAL FOR TIMING BELT KIT- CAMSHAFT SEAL - OS1

This is the oil seal for a the timing belt kit (suits most models). This is the Camshaft seal. NAK 70 90 10

$6.32
($4.52 USD ) In stock

OIL SEAL FOR TIMING BELT KIT- CRANKSHAFT SEAL - OS2

This is the oil seal for a the timing belt kit (suits most models). This is the crankshaft seal. NAK 32 50 10

$6.32
($4.52 USD ) In stock