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Old 11 Feb 2008, 05:31 am
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Default what are the differences between the B18a, B18b, and B18c from the acura integras?

is it just the cylinder head or is the block different as well. i wanted to get an integra but the gs rs and ls dont have vtec and i wanted to know what id have to do to get the vtec. would i just have to get the head of a b18c or is it more than just that? will i have to change lots of internals
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Old 11 Feb 2008, 05:46 am
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its been done but I wouldn't recommend it. Its called an ls vtec. They use a b16 a head but theres a lot more to it than that. A lot of stuff has to be done to make the different head fit on. You're looking at a lot of fabrication work. This project would be similar in cost to putting on a turbo but would only give about 20 more hp at the wheels. if you really want a vtec just get the gsr. Google ls vtec for more info about this
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Old 11 Feb 2008, 06:01 am
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Join Date: Aug 2007
Posts: 891

if you want VTEC, you can go LS/VTEC. you take a head VTEC such as the B16a or B18C ect. youll need a ECU for the head and the engine harness ectcheck out and many members have gone LS/VTEC and can help you( going LS/VTEC will sacrifice realiability)ill search on honda-tech and find the article for building an LS/VTEC so check back in a lil while
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Old 11 Feb 2008, 06:16 am
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b18a, b are pretty much the same engine, very little differences. b18a is just the second generation ls, rs, gs engine where the b18b is the third and has two more hp. The B18c1 is the third gen gsr engine and the b18c5 is the type r. The b18c1 has VTEC of course, um the valve train is stronger due to increased revs, higher compression due to lower block height, but the pistons and rods are still stronger. There are also under piston oil squirters and a crank girdleTo do a ls/vtec you'll need a head from any b16a series, b17a1, or b18c series which includes the complete head, intake manifold, vtec selenoid, valve cover, headers, distibutorthen you'll need the followingvtec ecugood idea to buy a new head gasketgsr head boltsgsr water pumpgsr timing beltgsr knock sensor4 steel braided hose with female ends, 22 inches in length 1/8-inch NPT female to 1/8-inch NPT female to 1/8-inch BSPT male on run pipe tee 1/8-inch NPT male to -4 male straight adaptor 3/8-inch NPT male to -4 male straight adaptor 1/8-inch internal pipe plug 1/8-inch NPT pipe tap 3/8-inch NPT pipe tap 14mm drill bit 10.9mm drill bit 12mmx1.25mm tap
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