- ons 22 maj 2024, 22:10
#1579350
Detta är vad skribenten säger
The 1971 and 1972 B20E / F are definitely not set up for unleaded gas and need inserts installed on the exhaust valves. I don't know whether Volvo started installing inserts for unleaded gas by 1974. That is something that you should check for. If not you should have a machine shop do that to prevent valve recession on the exhaust valves.
https://www.swedespeed.com/threads/kenn ... 42.668641/
The 1971 and 1972 B20E / F are definitely not set up for unleaded gas and need inserts installed on the exhaust valves. I don't know whether Volvo started installing inserts for unleaded gas by 1974. That is something that you should check for. If not you should have a machine shop do that to prevent valve recession on the exhaust valves.
https://www.swedespeed.com/threads/kenn ... 42.668641/
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