Serious 340 build into 361 HiRPM Screamer
I've been waiting to really begin on this build and I'm not waiting any longer. The plan was to build this for the EMC competition in 2020 but the corona agenda pretty much ended all of that and any and all travel into the US is forbidden for well.....
I've decided to pull out all the stops and build this with no real rules to follow. There will be compromises of course as this does have to run on pump premium 91-94 available here and it does have to have a modicum of manners of driveability. Looking for peak HP in the 540 range @ 7000-7300 RPM--the torque will take care of itself. This engine is destined for my Shop/Promo Truck which is a '83 Shortbox D150 lowered, 275/18 and 305/19 mated to a Supra R154 with a 3.9L V6 Dakota bellhousing.
The build:
340 block 4.08" -4.100" bore
318 Forged crank offset ground 3.450 stroke 1.850" RJ (Solid Rod Journal)
Pankl 6.200" rods .708" pin
Custom Mahle Forgings with their amazing 1mm/1mmNapier/2mm ring pack
EQ heads (Australian castings hopefully)
T&D Stainless Rockers 1.7/1.8 mated to custom machined bedplate
Custom Solid Flat Tappet (Rollers are too failure prone for real street use and mileage)
Schubeck Flat tappets
Weiand 7545 X-celerator
Holley XP 650-750
Hedman truck headers with some custom touches
I've been waiting to really begin on this build and I'm not waiting any longer. The plan was to build this for the EMC competition in 2020 but the corona agenda pretty much ended all of that and any and all travel into the US is forbidden for well.....
I've decided to pull out all the stops and build this with no real rules to follow. There will be compromises of course as this does have to run on pump premium 91-94 available here and it does have to have a modicum of manners of driveability. Looking for peak HP in the 540 range @ 7000-7300 RPM--the torque will take care of itself. This engine is destined for my Shop/Promo Truck which is a '83 Shortbox D150 lowered, 275/18 and 305/19 mated to a Supra R154 with a 3.9L V6 Dakota bellhousing.
The build:
340 block 4.08" -4.100" bore
318 Forged crank offset ground 3.450 stroke 1.850" RJ (Solid Rod Journal)
Pankl 6.200" rods .708" pin
Custom Mahle Forgings with their amazing 1mm/1mmNapier/2mm ring pack
EQ heads (Australian castings hopefully)
T&D Stainless Rockers 1.7/1.8 mated to custom machined bedplate
Custom Solid Flat Tappet (Rollers are too failure prone for real street use and mileage)
Schubeck Flat tappets
Weiand 7545 X-celerator
Holley XP 650-750
Hedman truck headers with some custom touches