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Turbo Pontiac 400 Build - Ludicrous Pontiac Power

Ken Crocie Built A 489ci Stroker Pontiac Pressurized With A Single Turbo And A Q-Jet That Is A Recipe For Ludicrous Power

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Dyno Test
RPM TQ HP Boost (PSI)
3,400 744 495 8
3,600 734 503 8
3,800 718 519 8
4,000 699 532 9
4,200 671 537 8
4,400 641 537 8
4,600 611 536 8
4,800 565 516 7
5,000 532 506 7
5,200 506 501 7
5,400 478 492 7
5,600 450 479 7

Note that this engine makes all this power with single-digit boost numbers.

Parts List
Description PN Source Price
Probe forged pistons custom HO Enterprises $535.95
SCE head gaskets custom HO Enterprises $220.00
SI intake valves, 2.11, 8 6002-SG HO Enterprises $144.00
SI exhaust valves, 1.77, 8 6003-SG HO Enterprises $144.00
Comp Cams hydraulic roller custom HO Enterprises $324.19
Performance Turbo hybrid turbo hybrid Performance Turbo call HO
Scat 4.50-inch-stroke crank 4400P45010 Summit Racing $838.96
Scat H-beam 6.70-inch rods 6670022A Summit Racing $541.95
Total Seal ring set MS0690-35 Summit Racing $373.39
Clevite rod bearings CB743HN Summit Racing $87.60
Clevite main bearings MS496P Summit Racing $63.95
Comp Cams hydraulic lifters 857-16 Summit Racing $454.75
Comp Cams rocker arms 1060-16 Summit Racing $363.95
Comp Cams valvesprings 26995-16 Summit Racing $186.95
Comp Cams retainers 787-16 Summit Racing $49.25
Comp Cams valve locks 648-16 Summit Racing $22.25
Comp Cams timing set 7112 Summit Racing $99.95
Comp Cams pushrods 7775-16 Summit Racing $136.95
Pro Products balancer 90020 Summit Racing $199.95
ARP rocker studs 200-7201 Summit Racing $69.95
ARP main studs 194-5401 Summit Racing $59.95
MSD BTM 6462 Summit Racing $373.95
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