15-04-2020, 05:27 PM
It's a factory made but later Austin Seven head and fits staight on to an earlier block with minimal modification (two longer studs are needed to locate the later top water branch). A low compression head engine develops 10.5bhp whereas the later head ups the power to around 13bhp. Not a lot but in percentage terms it's a worthwhile modification and it does make a difference. The word "performance" in Austin Seven terms is of course, relative.
The nearest thing to a workshop manual is the " red book" by Doug Woodrow entitled " The Austin Seven Manual" which covers all models.
Plus, what Steve said.
The nearest thing to a workshop manual is the " red book" by Doug Woodrow entitled " The Austin Seven Manual" which covers all models.
Plus, what Steve said.