boostineclipse
20+ Year Contributor
- 180
- 0
- May 19, 2002
-
Sacramento,
California
When referencing to RREs Tech page on the 1G head swap, it said you could use a 4G63 head in the swap also,1G-2G head swap. What are the differences between the two? If any at all? Valves,springs,retainers?