This motor in the video was a GenV 454 with new Eagle crank and reconditioned thumb rods with ARP bolts with 781 heads and new 2.19x1.88 valves and a comp cams extreme energy hydraulic roller and comp lifters. The torker intake hurts some when I prefer the air gap style better. I am building a big block 454 for 1970s corvette now and will upload some stuff about it in the future too.
@@djrowe10 what type of power do you think that set up produces? I have a 30 over 454 with worked 781 heads Flat tappet comp cam 250/256 @.050, 588/593 lift 110lsa, 1.7 rockers, probably around 10:1 maybe slightly higher. I just got a 850 e85 carb. The engine has ran for about 45 minutes max just wanting to see what type of power range thats good for. I want more but I have to see how it acts having no weight in the back
It took about a year to get this set up dyno run data. The 781 heads and smallish hydraulic roller cam at 10.25:1 compression made 457 HP at 5800 RPM and 539 TQ at 4600 starting at 2500 RPM was already 500 foot pounds! The low short torker intake kills HP overall and the heads did not have any big porting done apart from the throat of bowl while adding bigger seats for larger valves. The 781 oval ports don't make huge HP numbers unless seriously ported and then getting 600-700 HP is easily attainable. I plan on swapping intake to Holley Strip Dominator to push HP numbers up. Hope your set up makes good power too!
@@djrowe10 Wow thanks. That is right around the torque number I thought it would be slightly lower. I figured 550 torque. Also do you have your cam car or know your cam specs at all? Based on this info I am definitely going to go with a rpm air gap intake and either go with an aluminum head or get mine ported. Im willing to stick with this set up at its core and just want to maximize what I have. That horsepower number is about 100 lower than I expected though
The HP was disappointing to me a bit also but the cam and intake are not matched up too well which shows on the dyno. The heads made great torque with the 781s which was what I was after. I originally planned to put the engine in a 1980s square body truck and aimed at good low end power. My cam specs are comp cams 01-418-08. It definatley made power until 5800. A better cam choice would be more in the 6200-6500 power band for more HP. It is hard to make over 500 rear wheel HP under 6000 RPM. I would suggest the marine series cams from comp if you like comp as we used the 11-456-08 cam in similar engine with air gap intake that made 522HP. Thats like 80HP more! Good luck with your build! 👍
The lenght of the video is 4:54 (coincidence?)
Wow. I never even noticed that. Thanks for pointing it out! 👍
I have 82 caballero with worked 781 heads also. What is your engine set up?
This motor in the video was a GenV 454 with new Eagle crank and reconditioned thumb rods with ARP bolts with 781 heads and new 2.19x1.88 valves and a comp cams extreme energy hydraulic roller and comp lifters. The torker intake hurts some when I prefer the air gap style better. I am building a big block 454 for 1970s corvette now and will upload some stuff about it in the future too.
@@djrowe10 what type of power do you think that set up produces? I have a 30 over 454 with worked 781 heads Flat tappet comp cam 250/256 @.050, 588/593 lift 110lsa, 1.7 rockers, probably around 10:1 maybe slightly higher. I just got a 850 e85 carb. The engine has ran for about 45 minutes max just wanting to see what type of power range thats good for. I want more but I have to see how it acts having no weight in the back
It took about a year to get this set up dyno run data. The 781 heads and smallish hydraulic roller cam at 10.25:1 compression made 457 HP at 5800 RPM and 539 TQ at 4600 starting at 2500 RPM was already 500 foot pounds! The low short torker intake kills HP overall and the heads did not have any big porting done apart from the throat of bowl while adding bigger seats for larger valves. The 781 oval ports don't make huge HP numbers unless seriously ported and then getting 600-700 HP is easily attainable. I plan on swapping intake to Holley Strip Dominator to push HP numbers up. Hope your set up makes good power too!
@@djrowe10 Wow thanks. That is right around the torque number I thought it would be slightly lower. I figured 550 torque. Also do you have your cam car or know your cam specs at all? Based on this info I am definitely going to go with a rpm air gap intake and either go with an aluminum head or get mine ported. Im willing to stick with this set up at its core and just want to maximize what I have. That horsepower number is about 100 lower than I expected though
The HP was disappointing to me a bit also but the cam and intake are not matched up too well which shows on the dyno. The heads made great torque with the 781s which was what I was after. I originally planned to put the engine in a 1980s square body truck and aimed at good low end power. My cam specs are comp cams 01-418-08. It definatley made power until 5800. A better cam choice would be more in the 6200-6500 power band for more HP. It is hard to make over 500 rear wheel HP under 6000 RPM. I would suggest the marine series cams from comp if you like comp as we used the 11-456-08 cam in similar engine with air gap intake that made 522HP. Thats like 80HP more! Good luck with your build! 👍
Lift the body
That's a good idea. 👍 Ultimately, I think I will get a 2-3" steel cowl hood from AMD. That way I can use a taller single plane intake.