Iag fire lock 051 head gaskets with iag spec alloy ring set pn iag eng 1740. The two are compatible using special thicker gaskets with no modifications needed to the heads themselves.
Subaru Impreza Ej20 Ej25 Cylinder Head Stage 2
Ej20 heads on ej25 block. This setup allows you to make big power reliably. 851 on d cylinder heads ej255 821 on b v and w ej257 heads with standard thickness gasket. Opening up the chambers on ej20 heads for ej25 short block saving your 20 subaru heads and using them on a new 25 short block remaking the chambers with the cnc machine step 1. You may have to register before you can post. Borla unequal length header. Je ej25 pistons with ej20 heads frs.
For this reason we build all of our ej20s as a hybrid setup. Hybrid ej25 block with ej20 heads. The iag willall stage x short block has a power output rating of 1100bhp. Click the register link above to proceed. If this is your first visit be sure to check out the faq by clicking the link above. Opening up the chambers on ej20 heads for ej25 short block saving your 20 subaru heads and using them on a new 25 short block remaking the chambers with the cnc machine step 1.
Visit our community sponsor. All iag short blocks are balanced and blueprinted. Using the ej20 cylinder heads on an ej25 short blockcrankcase. To start viewing messages select the forum that you want to visit from the selection below.

















