PRODUCT DETAILS
Cometic Street Pro Top End Gasket Kit for B-Series VTEC - Part #PRO2003T
If the head is coming off your B18C, B16 or B17, this is the box that puts it back on. Cometic's PRO2003T is the Street Pro top end kit for the DOHC VTEC B-series at stock 82mm bore, built around their 3-layer MLS head gasket with everything else you need to seal the head, valve cover and manifolds in one part number.
What It Is and Why It Works
Cometic's Street Pro top end kit is built around their 3-layer MLS head gasket: two Viton-coated stainless outer layers and a stainless center shim, rated to 250 C, that springs back after every heat cycle instead of taking a set. The rest of the kit is the soft parts you need to close a B-series head: valve cover gasket and spark plug tube seals, intake and exhaust manifold gaskets, valve stem seals, and the small stuff that always turns out to be missing at 9 pm on a Sunday.
A top end kit only makes sense if the head is coming off anyway: a blown head gasket, a valve job, cams and springs, a head swap. Buying the pieces separately costs more and you'll forget one. Cometic sizes the head gasket bore to the engine family, so check that number against your block before you order.
Specs
| Part number | PRO2003T |
| Head gasket | MLS, 3-layer stainless with Viton, 82mm bore, .030 in compressed |
| Engines | B16A2, B16A3, B17A1, B18C1, B18C5 (stock 81mm bore) |
| Included | Head gasket, valve cover gasket, spark plug tube seals, intake and exhaust manifold gaskets, valve stem seals, misc. seals (per Cometic) |
Fitment
| Vehicle | Engine |
| 1994-2001 Acura Integra GS-R | B18C1 |
| 1997-2001 Acura Integra Type R | B18C5 |
| 1999-2000 Honda Civic Si | B16A2 |
| 1994-1997 Honda Civic del Sol VTEC | B16A3 |
| 1992-1993 Acura Integra GS-R | B17A1 |
| B-swaps | Any DOHC VTEC B-series at stock bore |
DOHC VTEC B-series only. The B18A/B18B non-VTEC head uses a different gasket set; that kit is PRO2004T. B20 heads on VTEC blocks use the VTEC kit but need an 84mm+ gasket.
What to Know Before You Buy
Surface finish is everything with MLS. Cometic wants 50 RA or smoother on both the block and head; a rough or pitted deck will weep coolant no matter how carefully you torque it. Have the head checked flat and skimmed if it's been hot.
Measure the bore. Cometic sizes these kits by engine family at stock bore; if the block has been taken out, buy the head gasket separately in the right size and use the rest of the kit.
Follow Honda's torque sequence and final angle with new head bolts or ARP studs. MLS gaskets do not like being reused or retorqued.
| Vehicle | Engine |
| 1994-2001 Acura Integra GS-R | B18C1 |
| 1997-2001 Acura Integra Type R | B18C5 |
| 1999-2000 Honda Civic Si | B16A2 |
| 1994-1997 Honda Civic del Sol VTEC | B16A3 |
| 1992-1993 Acura Integra GS-R | B17A1 |
| B-swaps | Any DOHC VTEC B-series at stock bore |
DOHC VTEC B-series only. The B18A/B18B non-VTEC head uses a different gasket set; that kit is PRO2004T. B20 heads on VTEC blocks use the VTEC kit but need an 84mm+ gasket.
| Part number | PRO2003T |
| Head gasket | MLS, 3-layer stainless with Viton, 82mm bore, .030 in compressed |
| Engines | B16A2, B16A3, B17A1, B18C1, B18C5 (stock 81mm bore) |
| Included | Head gasket, valve cover gasket, spark plug tube seals, intake and exhaust manifold gaskets, valve stem seals, misc. seals (per Cometic) |
| Packaged size / weight | 23.7 x 14.1 x 1.8 in, 2.1 lb (per PIM) |