e38a
Probationary Member
- 11
- 0
- Jul 4, 2014
-
Old Zealand,
New_Zealand
So ive been thinking for a while, would a 4G64 6 bolt crank work in a 4G61T block ?
some specs:
deck height
4G61 --- 274.9-275.1 --- 9mm less than 4g63
4G63 --- 283.9-284.1 ----6mm less than 4g64
4G64 --- 289.9-290.1 ----15mm difference between 61-64 deck height
timing belt teeth (not really important, but handy to know)
4G61 - 151
4G63 - 153
4g64 - 154 (dohc)
4G61 & 4G63 dohc use the same oem part numbers for the cam gears, & ive heard of people using 63 head on 61, so big or small port 63 head can be used no problems.
4G61 uses the same bearings, main caps/bolts (bottom end design) as dohc 6 bolt 4g63 turbo block, also uses same 12mm oem head bolts
with a general online engine calculator with 100mm stroke and say 83.3(1mm over sized pistons) cc's work out to be 2180cc
obviously custom length rods and custom pistons will be necessary, but my question is will the 64 crank be able to work in the 61 block ???[DOUBLEPOST=1409640033][/DOUBLEPOST]also 61 is a 82.3 bore x 75mm with same oem 150mm conrods used in 6 bolt turbo block*
some specs:
deck height
4G61 --- 274.9-275.1 --- 9mm less than 4g63
4G63 --- 283.9-284.1 ----6mm less than 4g64
4G64 --- 289.9-290.1 ----15mm difference between 61-64 deck height
timing belt teeth (not really important, but handy to know)
4G61 - 151
4G63 - 153
4g64 - 154 (dohc)
4G61 & 4G63 dohc use the same oem part numbers for the cam gears, & ive heard of people using 63 head on 61, so big or small port 63 head can be used no problems.
4G61 uses the same bearings, main caps/bolts (bottom end design) as dohc 6 bolt 4g63 turbo block, also uses same 12mm oem head bolts
with a general online engine calculator with 100mm stroke and say 83.3(1mm over sized pistons) cc's work out to be 2180cc
obviously custom length rods and custom pistons will be necessary, but my question is will the 64 crank be able to work in the 61 block ???[DOUBLEPOST=1409640033][/DOUBLEPOST]also 61 is a 82.3 bore x 75mm with same oem 150mm conrods used in 6 bolt turbo block*
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