Turbo bolt pattern - W x H
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T3 ---------- 86mm x 45mm
T4 ----------- 83mm x 70mm
CT26 -------- 70mm x 80mm
Nissan T25 ---- 73mm x 40mm
TD006--------3-bolt - 65mm C. to C.
K24-26 ---------- 76mm x 38mm
K27/28 ---------- 86mm x 44.5mm
Apex ---------- 73mm x 33.5mm
TD07-08, T78-88 down pipe flange:
3" ID center hole, 4) .415 bolt holes (10mm plus clearance) on a 4.185" B.C. (square pattern).
HKS long runner 7M turbo manifold Waste Gate extension flange:
3 bolt flange - 2" center hole, Bolts on a 3.175" B.C. (2.75" C. to C.)
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T3 ---------- 86mm x 45mm
T4 ----------- 83mm x 70mm
CT26 -------- 70mm x 80mm
Nissan T25 ---- 73mm x 40mm
TD006--------3-bolt - 65mm C. to C.
K24-26 ---------- 76mm x 38mm
K27/28 ---------- 86mm x 44.5mm
Apex ---------- 73mm x 33.5mm
TD07-08, T78-88 down pipe flange:
3" ID center hole, 4) .415 bolt holes (10mm plus clearance) on a 4.185" B.C. (square pattern).
HKS long runner 7M turbo manifold Waste Gate extension flange:
3 bolt flange - 2" center hole, Bolts on a 3.175" B.C. (2.75" C. to C.)