After losing a lobe on two different flat tappet cam mouse builds, I only do roller now. So much better in every way.
CK5
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Nitrous
Dart 427 small block...big block fun, small block package and weight. Assembled 427 short block is somewhat reasonably priced IMO.
Cheap 496 stroker.. big block power and a big block package..
No, but here it is:
Bottom end is nothing special. Flat piston w/ valve relief. Likely .030” over 350 or 383
Hydraulic roller .474/.510” lift, 208*/221* @ .050” lift and 112 LSA
Aluminum cylinder head of 58-64cc chamber, D shaped exhaust port in ~75cc range, intake 165~185cc with a 1.94/1.5 valve set
Intake I already have on the truck is the spec ZZ4 intake. Similar to a Performer RPM but better low end
Eventually run FITech, but might rechip my TBI and use either size throttle body until I save up some more
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I put a 31 gallon in during the last rebuild, had the smaller 25 in previously.
that was fun watching you from Lukes Cummins....he couldn't do shit for a burnout as it was stock! We both laughed at its unimpressiveness.
funnernhell!
Wtf did you get popcorn??? I'm hungry
Evil
Slap some Cleveland heads on it and... oh wait.... wrong forum.
To add my .02 here.
You can do a BBC with aluminum heads without breaking the bank too bad. Mine is a mild build for the most part but it’s still making somewhere in between 425-450hp. You can pick up a set of procomp bare heads for around $700.0 and have your choice of hardware installed. Mine were machined and fitted with SS dart stuff and comp cams pro magnum roller rockers. The bottom end is just a cast crank that has been balanced, factory rods and hypereutectic pistons. For whatever reason the pistons are dished which knocks the CR down to 8.25:1ish. Why they did this??? I don’t know. Either reliability or a turbo? Either way it still makes plenty of power. The cam is an ultradyne cull roller that was custom ground for this motor and it has solid roller lifters. Oh and a RPM airgap intake. My only complaint with this motor is it lags a little in the bottom end with a load behind it BUT with a manual transmission it had excellent manners as a DD. Part of this issue might have been the carb I was running and I believe my tach was junk and causing some issues as well. So FWIW the cost compared to building a SBC is obviously going to be less but how reliable is a 450hp small block? Is it going to be as friendly as my setup or will it be a tuning nightmare? I really don’t know so that’s why I’m asking. Another thing is my C20 with the nv4500 empty barely hit 5k on the scales with this motor. So weight? Can’t be too bad I guess? Hope this is useful info for someone?
To add my .02 here.
You can do a BBC with aluminum heads without breaking the bank too bad. Mine is a mild build for the most part but it’s still making somewhere in between 425-450hp. You can pick up a set of procomp bare heads for around $700.0 and have your choice of hardware installed. Mine were machined and fitted with SS dart stuff and comp cams pro magnum roller rockers. The bottom end is just a cast crank that has been balanced, factory rods and hypereutectic pistons. For whatever reason the pistons are dished which knocks the CR down to 8.25:1ish. Why they did this??? I don’t know. Either reliability or a turbo? Either way it still makes plenty of power. The cam is an ultradyne cull roller that was custom ground for this motor and it has solid roller lifters. Oh and a RPM airgap intake. My only complaint with this motor is it lags a little in the bottom end with a load behind it BUT with a manual transmission it had excellent manners as a DD. Part of this issue might have been the carb I was running and I believe my tach was junk and causing some issues as well. So FWIW the cost compared to building a SBC is obviously going to be less but how reliable is a 450hp small block? Is it going to be as friendly as my setup or will it be a tuning nightmare? I really don’t know so that’s why I’m asking. Another thing is my C20 with the nv4500 empty barely hit 5k on the scales with this motor. So weight? Can’t be too bad I guess? Hope this is useful info for someone?
Actually gaining a lot of momentum for a BBC. Finding donor burbs with Vortec 7.4 running ~$2.
I can rebuild it in the garage and use the factory FI and just retune it....
Add aluminum heads and cam when the money tree finally blooms
L29 is a bitchin motor. I always like mine in my 96 K2500 (the one I used to tow my blazer with when we went to Chinaman). My brother now owns that truck and lives in Penrose. He wants to build it one day just cause it's a cool motor
It’ll pull how I want that’s for sure. A retune and good exhaust would net some decent power gains.L29 is a bitchin motor. I always like mine in my 96 K2500 (the one I used to tow my blazer with when we went to Chinaman). My brother now owns that truck and lives in Penrose. He wants to build it one day just cause it's a cool motor
Not a fan of the extra weight just because the front springs are so soft, but...
The buy in cost isn’t bad. And the rebuild cost is the same as a SBC
Do you keep the Vortec fuel injection setup or change that to something else? I love how tight the overall packaging is on the Vortec engines whenever I pop the hood on any we have at work.
And, the brackets on the front of the motor already are square body swap friendly (and you could keep/have A/C if you want/care)...the 8.1 is a little different in that regard.
I had a pretty free flowing exhaust and an Airaid intake setup on that truck. I think a simple tune would have gone a long ways for that stock motor. My brother is planning on getting a tune on that thing too.
I had a pretty free flowing exhaust and an Airaid intake setup on that truck. I think a simple tune would have gone a long ways for that stock motor. My brother is planning on getting a tune on that thing too.
I was gonna run it...
