470 build - Need some insight - 68 Dart
I am reaching the mid point of a 68 dart build and am looking for some insight. I had purchased a 470 locally as I know the shop that built it. The engine utilizes INDY S/R heads that were fully ported by Indy (Flowsheet says 351 CFM intake and 233.1 EX @.606) Bottom end is eagle 3.91 crank with eagle 6.760 rods and Ross forged FT pistons. Compression ratio was calculated by the builder to be 11.18:1. The engine is currently set up with a Trickflow (TFS-61602003) hydraulic roller cam that is .600 lift on both the intake and exhaust. (I attached a picture of the cam card and IN degree) It is also using Trickflow hydraulic lifters and PAC 1914 valve springs. Intake is a heavily worked Holley street dominator that should flow pretty well.
My question is in regards to the Trickflow cam. The cam was originally selected for a 4 speed car, but I and planning to run an automatic in a street/ strip setup. In looking at the specs for this cam, I am a little concerned as they show the power band coming in at 3,000-6,500. I know that the 470 will change things a little bit, but I haven't found any write ups on people using the trickflow cam and what they thought of it. I would like to stick with this cam if possible, but would change it now before I install the engine if it isn't a good fit. I should mention that I am going to be running a 27" tall tire with 3.23 gears. Has anyone run this cam in a low deck stroker and have any thoughts on this combination?
Last question I have is in regards to the trickflow hydraulic roller lifters. Have people had good experiences with them? I read a few comments about issues with lack of oil pressure on some builds, but I am not sure if they were using the same retrofit trickflow hydraulic roller lifters that are in this motor. Posting a couple picture of the motor and build which will hopefully be on the road later this summer.
I am reaching the mid point of a 68 dart build and am looking for some insight. I had purchased a 470 locally as I know the shop that built it. The engine utilizes INDY S/R heads that were fully ported by Indy (Flowsheet says 351 CFM intake and 233.1 EX @.606) Bottom end is eagle 3.91 crank with eagle 6.760 rods and Ross forged FT pistons. Compression ratio was calculated by the builder to be 11.18:1. The engine is currently set up with a Trickflow (TFS-61602003) hydraulic roller cam that is .600 lift on both the intake and exhaust. (I attached a picture of the cam card and IN degree) It is also using Trickflow hydraulic lifters and PAC 1914 valve springs. Intake is a heavily worked Holley street dominator that should flow pretty well.
My question is in regards to the Trickflow cam. The cam was originally selected for a 4 speed car, but I and planning to run an automatic in a street/ strip setup. In looking at the specs for this cam, I am a little concerned as they show the power band coming in at 3,000-6,500. I know that the 470 will change things a little bit, but I haven't found any write ups on people using the trickflow cam and what they thought of it. I would like to stick with this cam if possible, but would change it now before I install the engine if it isn't a good fit. I should mention that I am going to be running a 27" tall tire with 3.23 gears. Has anyone run this cam in a low deck stroker and have any thoughts on this combination?
Last question I have is in regards to the trickflow hydraulic roller lifters. Have people had good experiences with them? I read a few comments about issues with lack of oil pressure on some builds, but I am not sure if they were using the same retrofit trickflow hydraulic roller lifters that are in this motor. Posting a couple picture of the motor and build which will hopefully be on the road later this summer.
