Hot Rod 4x4 Down On Power After Heads/Cam Swap! 

Preshate it.

If I didn't show that I wouldn't have much of a video! 🤣

Fuel pressure is fine.

Preshate that a bunch! 👍

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Hello Ireland and preshate the kind words! 👍👍

Send me the money and I'll buy whatever parts you want.

I have a 383 that my dad built in the 80s that has the Comp 280 magnum cam. It's like 12:5-1 with dome pistons and a set of worked 186 casting heads with big valves, lots of port work. It's in my old pickup now and runs on E85.

@@Bobthebuilder.69 I also built a 383 in 1990 and put the comp 280 in it, I had a Edelbrock performer intake on it with a Holley 750 I also had a set of double hump 327 heads that motor made tons of torque! Btw it had the 400 rods in it, later on everybody started using the 350 rods.

@@mitchchandler8243 my dad had this motor in a Chevelle in the early 80s and a few years later, he replaced it with a big block, so it has very low miles. It sat in dads garage wrapped up on a engine stand for at least 30 years, I talked him into selling it to me about 8 years ago. Within a few hours we had it running again, I couldn't believe it. It sat at my house for 5 years 😂 but when COVID hit I got laid off for 3 weeks and I put a new set of gaskets on it and dropped it into my 85 Chevy that had a worn out 305. It has a 1980s Edelbrock torker 2 intake a new Quick Fuel E85 carb. I went with E85 because the motor makes a little too much compression for this crappy pump gas we have today.

@@Bobthebuilder.69 mine was in a 1971 nova which was my first car, a few years later I bought a 70 Chevelle SS 396 but it had the exact 383 I had in the Nova but with a set of Chevy bowtie heads I sure wish I had that car back lol

@@mitchchandler8243 good times. Gotta love a small block chevy

Maybe you missed the intro talking about the dyno session with basically the same setup making pretty decent power. The laying down you hear is typical of a quadrajet.

Hopefully that fixes it!

It sure is!

I don't live in Alaska so no need to keep it warm in the winter.

Time will tell if this fixes it!

Did that a long time ago. No heat from the heater also says it's not warming up. I'd love to figure that out and get my heat back!

I can be hard headed and stubborn! 😂

Glad to help. 👍

Funny how that works!

@@tetedur377 torque converters are tricky on trucks ….too much stall can get ya in trouble over heating the trans if you tow with it. Lock up helps but a trans can heat up quick just driving around town with too much stall…..depending on the gear ratio I’d run 2000 or 2500 max

Converters don't make HP. This truck is making no power anywhere in the rpm range. This is not a high rise either, just a plain old vortec performer. RPM range on this intake is idle to 5500.

@@ThisNThatGarage correct , convertors don’t make HP but a larger than stock cam does change power band. Anytime ya add duration it affects low end torque characteristics! Gaining mid range torque and higher rpm Hp usually is a trade off with losing low end torque! Many later model vehicles had a 1600-1800 stall speed. Killing low end torque makes it worse! Even a 2500 stall would make a noticeable improvement in acceleration…higher stall allows the engine to reach the useable rpm range easier! I get it that there’s way more tuning that can be done to improve performance ….but I’ve found over the years a properly match stall speed makes a world of difference ….a performer rpm is taller than a regular performer …performer rpm intake are typically rated 1500-6500 where a performer is rated idle to 5000. Again …the majority of the bugs your dealing with could be tuned out but it’s possible your battling against parts combinations. Any cam with a lobe is gonna experience low end torque loss! I’ve experienced these issues myself many times over the years ….just throwing out some possibilities if ya run into a dead end! The collapsed lifters your dealing with could be your whole issue….hope that’s all it is! Not sure why the engine isn’t clattering a whole bunch with that much slop…maybe they pump up once it’s running? …idk…good luck

@@markcole6475 I'm completely aware of how cams and stall converters work work. Maybe people misunderstood me but it's not a matter of where it's making power, the motor is not making any power at all. I can stall it and gear it til the cows come home and it ain't gonna make it any better. 👍

@@ThisNThatGarage ah….I see..I was under the impression it was stumbling/bogging at low rpm from your audio while you were test driving! Guess with the exhaust noise I didn’t hear exactly what you were saying! I do remember you saying on WOT runs that it wasn’t too bad and pretty decent power! So I guess that’s where I got my opinion from just being a low end issue! I recall you comparing the build from “Engine Masters” being very similar to the build you have! Which should be similar in power! Thats probably true but I have watched that show also and they all have made many comments about some builds when they do mods that it’s unclear what drivability would be like in a light weight vs heavy vehicle!

They sure don't.

Just a reminder that it's called This N That Garage. I get into a little bit of everything.

No sir, not removing the heads.

Fingers crossed that new lifters liven things up a bit!

No sir, it has never made decent power since the cam swap.

Changed the nozzles multiple times with no effect.

Checked it awhile back and I believe it's on its way out.