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I got a B20 for my 122s Coupe swap/upgrade, but which B20 did I get? 120-130

posted by  Volvo From Heck on  Tue Aug 31 05:16 CST 2010
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last visit: Mon Oct 13 20:56 CST 2014
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Gary, from my own somewhat age compromised memory and an owners manual for the '72 140 your information is correct. B20B-118hp@5800rpm--SAE rating. The B20F motor is listed as having 10.5:1 compression, 125hp@6000--SAE. The next manual I have is for the '73 B20F -- 8.7:1 c.r. - rated at 112@6000--SAE. Keep in mind that 1973 was the year the auto industry adopted new SAE standards called SAE-J, I think. Previously accessories (wp/alt/ps) and exhaust were not part of the test procedure. SAE-J tightened it up - more like - or tighter than European DIN standards. Remember the era of 150hp rated "muscle cars"? Pollution controls became more involved then too--so the consumer was left to figure it all out without a point of reference. -- Dave






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