Editing Ford small block engine (section)

===FR Boss 351W===
The "Racing Boss 351" (not to be confused with the Ford 335 engine Cleveland-based [[Ford 335 engine#1971 R-code (Boss 351)|Boss 351]]) is a crate engine based on the {{cvt|351|cuin|cc|0}} Ford Windsor engine, but with Cleveland-sized {{cvt|2.75|in|mm|0}} main bearing journals. Deck height choices include {{cvt|9.2|in|mm|0}} and {{cvt|9.5|in|mm|0}}. Maximum displacements are {{cvt|4.25|in|mm|0}} stroke and {{cvt|4.125|in|mm|0}} bore. The resulting maximum displacement is {{cvt|{{engine size|stroke=4.25|bore=4.125|cyl=8|rnd=2}}|cuin|cc|0}}.

The uncross-drilled block with increased bore capacity became available from the third quarter of 2009. A {{cvt|427|cuin|cc |0}} Boss 351-based crate engine producing {{cvt|535|hp|kW|0}} was available from the first quarter of 2010.

In 2010, the [[Suggested retail price|MSRP]] for the Boss 351 block was US$1,999.<ref>{{cite web |url=http://www.autoblog.com/2009/06/13/ford-racing-introduces-new-boss-351-engine-block/ |title=Ford Racing introduces new Boss 351 engine block |author=Korzeniewski, Jeremy |work=Autoblog |date=June 13, 2009}}</ref>