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Old 11-28-2020, 11:08 AM   #76
Scooby Newbie
Member#: 208945
Join Date: Apr 2009
Chapter/Region: NESIC
Location: Massachusetts
03 Forester


old thread revival......

how is this different from say using an STI short block and putting ej251 heads on it?
CR could be wrong?
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Old 11-28-2020, 11:43 AM   #77
Scooby Newbie
Member#: 478524
Join Date: Nov 2017
Chapter/Region: NESIC
Location: 1997 2.2LGT GT35
1995 EZ30 Coupe


The EJ251 is 'open deck' while the EJ257 is 'semi-closed deck'. Theoretically the semi closed deck is more resilient to things like cylinder wall vibration and deformation. If you compare the open deck to the semi closed side by side, there's not much extra support on the semi closed.

Older 2.0's and 2.2's were available in proper 'closed deck' form, there's a picture of one earlier in this thread, page two, I believe.
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