When did TC start using twin cam heads?
The heads on TC engines from 1999 to 2004 were from the same casting. These heads came with 5/16” valve stems with 1.85” intake valves and 1.565” exhaust valves controlled by coil springs with about a .510” cam lift limit when using stock rockers. The last digit of the casting number for these casting heads is -99. ’99-’04 TC Head Flow
How big are the valves on a twin cam Harley?
Our screaming’ eagle 110 stage “1” come with a multi angle intake and radius super stock valve job, intake & exhaust bowl blending and are milled .010 to assure proper gasket sealing. Heads flow over 300 cfm. Valve sizes are 2.120 intake and 1.620 exhaust. We can work your heads or you can do our head exchange program.
How many CI does a twin cam engine have?
These are great entry level performance heads for the 2006 – 2016 Twin Cam engines. These heads have 1.900 intake valve and a 1.570 exhaust valve with a 1.650 intake port opening. These heads work well with up to 117 ci engines.
How big is a TWIN CAM CNC Sportmax head?
Valve springs are custom-packed to handle valve lifts up to .580”*; head gasket surfaces are precision-machined to your deck requirements to ensure proper compression, absolute trueness and surface finish. The Stage II CNC SportMax heads provide real results with a great balance of performance and value.
Our screaming’ eagle 110 stage “1” come with a multi angle intake and radius super stock valve job, intake & exhaust bowl blending and are milled .010 to assure proper gasket sealing. Heads flow over 300 cfm. Valve sizes are 2.120 intake and 1.620 exhaust. We can work your heads or you can do our head exchange program.
What do I need to know about NRHS twin cam heads?
The NRHS Stage 1 CNC ported Twin Cam heads are for the budget minded enthusiast who wants big torque and horsepower without spending big dollars. The Stage 1 CNC treatment begins with a thorough cleaning and inspection of your heads. The springs are then carefully tested for correct pressure and travel.
These are great entry level performance heads for the 2006 – 2016 Twin Cam engines. These heads have 1.900 intake valve and a 1.570 exhaust valve with a 1.650 intake port opening. These heads work well with up to 117 ci engines.
Valve springs are custom-packed to handle valve lifts up to .580”*; head gasket surfaces are precision-machined to your deck requirements to ensure proper compression, absolute trueness and surface finish. The Stage II CNC SportMax heads provide real results with a great balance of performance and value.
How does a twin cam engine increase power?
The folks at CycleRama spent a lot of time optimizing the ports on the Twin Cam heads before committing to the current design. These heads will increase the power of your engine significantly. The performance of the CycleRama designed cam is matched to the flow characteristics of the cylinder heads. This cam produced a wide power band.
How many horsepower does a tc95 twin cam engine make?
Who would believe a TC95 could make over 120 horsepower. The heart of this upgrade is a set of CycleRama (727-546-0889) CNC Ported heads. The folks at CycleRama spent a lot of time optimizing the ports on the Twin Cam heads before committing to the current design.
When did Harley Davidson start making twin cam engines?
Harley-Davidson Twin Cam Heads Flow Bench Study Harley-Davidson began manufacturing the 88 cubic inch Twin Cam engine for the 1999 model year of some of their “Big Twin” motorcycles. By the 2000 model year, all the “Big Twin” line was converted to the Twin Cam (except CVO FXR’s).