The guys bring the well-known but anemic 305 Small Block Chevy into the shop by viewer request. They teardown a used and abused 305 and get it ready for some mild upgrades for the everyday hot rodder. The transformation continues as we assemble our Small Block Chevy with new upgrades. Once it’s put together, we’ll put it on the dyno and see if the 305 can make respectable power with some modern touches. Then, we bring our it back for a second round of racier upgrades as we try and squeeze even more power out of this little small block.
0:00 – Intro & Baselines
3:06 – Teardown
7:18 – Cleanup
15:54 – Assembly
37:54 – Dyno Runs
46:38 – Additional Upgrades
58:05 – Final Dyno Runs
PARTS USED IN THIS EPISODE:
Summit Racing: Mahle PowerPak Piston and Ring Kit
More Info: https://pntv.us/pn_pt_23388_65c254c14b1a1
Summit Racing: Scat Pro Comp I-Beam Connecting Rods
More Info: https://pntv.us/pn_pt_23389_65c254e429776
ARP: Head Bolts
CWT Industries: Multi-Bal 5500
Scat Crankshafts: Scat Series 9000 Cast Steel Crankshaft
Sunnen Products Company: Sunnen SV-15 Honing Machine
Comp Cams: Keyway Adjustable Billet Timing Set
More Info: https://pntv.us/pn_pt_23398_65c25f456b10f
Duralast: Water Pump
More Info: https://pntv.us/pn_pt_23412_65c268e196fee
Summit Racing: COMP Cams Evolution Retro-Fit Hydraulic Roller Lifters
More Info: https://pntv.us/pn_pt_23407_65c267f4a1928
Summit Racing: Trick Flow Super 23 Cylinder Heads
More Info: https://pntv.us/pn_pt_23406_65c26773de563
Summit Racing: Moroso Oil Pan
More Info: https://pntv.us/pn_pt_23404_65c26722d967e
Summit Racing: Moroso Timing Pointer
More Info: https://pntv.us/pn_pt_23400_65c266598d9dc
Summit Racing: Summit Racing Pro Ring Filer
More Info: https://pntv.us/pn_pt_23395_65c25da1c09b1
Summit Racing: Summit Racing Pro SBC Hydraulic Roller Camshaft
More Info: https://pntv.us/pn_pt_23397_65c25e7eb8519
Summit Racing: Trick Flow Chromoly Pushrods
More Info: https://pntv.us/pn_pt_23408_65c2681b9f04a
Summit Racing: Trick Flow Roller Rocker Arms
More Info: https://pntv.us/pn_pt_23409_65c26846860ce
ARP: Fasteners
ARP: Intake Manifold Bolt Kit
ARP: Oil Pan Bolt Kit
ARP: Oil Pump Driveshaft
ARP: Oil Pump Stud Kit
ARP: Rod Bolt Stretch Gauge Digital Billet
Duralast: Edelbrock Victor Jr. Intake Manifold
Fluidampr: Harmonic Damper
Goodson Shop Supplies: Cam Bearing Installer
Holley: MSD Pro-Billet Distributor
Holley: Quick Fuel Black Diamond 750CFM Carburetor
Lubrication Specialties: Hot Shot’s Secret Adrenaline Assembly Lubricant
Summit Racing: Trick Flow SUper 23 195 Cylinder Heads
More Info: https://pntv.us/pn_pt_23425_65e8cc46a2f89
Summit Racing: Cast Aluminum Timing Cover
More Info: https://pntv.us/pn_pt_23431_65e8d2d11f2cb
Summit Racing: Cometic MLS Head Gaskets
More Info: https://pntv.us/pn_pt_23434_65e8d3765bd4e
Summit Racing: Trick Flow Chromoly Pushrods
More Info: https://pntv.us/pn_pt_23436_65e8d6dc2fc66
Summit Racing: Trick Flow Rocker Stud Girdles for Chevy
More Info: https://pntv.us/pn_pt_23439_65e8d74973544
ARP: Rocker Arm Studs
Callies: Compstar Connecting Rods
Callies: Compstar Crankshaft
Comp Cams: Conical Valve Springs
Comp Cams: Endure-X Solid Roller Lifters
Comp Cams: Keyway Adjustable Billet Timing Set
Comp Cams: Ultra Pro Magnum XD Roller Rocker Arms
CWT Industries: Multi-Bal 5500
DSS Racing: Piston Rings
DSS Racing: Small Block Chevy FXK2 Series Piston Set
Edelbrock: Victor E 23 Degree Intake Manifold
Fluidampr: Harmonic Balancer
Holley: MSD Pro-Billet Distributor
Holley: Quick Fuel Q-Series Carburetor 950CFM
Lubrication Specialties: Hot Shot’s Secret Adrenaline Assembly Lubricant
MSC: Vectrax Milling Machine
So if you completely change everything in your 305 including machine work to block and crank then you might reach 500
I could get you alot more out of your combos, but enjoy just watching what others do.
Good Job
👍
Hi would sell to me the old 305 stuff crank with pistone and rod and cam and heads
I'd like to know what gas station they went to for "pump gas" that can handle 11+:1 compression ratio. And I wish they'd be a little more consistent in how they say numbers; "one nine four hundred", then "one point six rockers". A newbie would be lost, and even someone whose been very hands-on building engines – like me – has to occasionally give a "what the flock did he just say?"
I've always loved the 305 because of the wide range of work you can put into it from mild to wild just never underestimate that 305 it's actually got more meat on the bones than the 350
Garcia Edward Thomas Margaret Davis Anna
Foot pounds foot pounds..
Fun video
Interesting but money spend on the full build just buy a LS with that power for cheap.
Now put a turbo on it and see what it can do boosted
A 4inch bore sbc block, can be a 283 to 350 ,stock configuration, cubic inches is mostly determined by the throw of the crankshaft, increasing the bore by .030 of a 350 crank will increase to 355,etc.
Nice numbers!!! the pistons are .030"?
Cool, since i hated the small bore 305 too back in the day. But with the small bore, it requires a lot of stroke to get any cubes, and then you're limited on engine speed more than a larger bore due to piston speed. Knock knock? Who's there? Rod.
Obstruction of What??? The kids even offered to stand the dirt bike upright!! For Officer leg sweep to take photographs!!! It's disgusting how Cops set up an arrest for nothing 😠…. Video everything and ask questions but never answer questions!!! 🤬🤬🤬
Same cash and work into a 350 would have made 100 more hp…
Impressive for a 305 but I still say cubic inch or cubic dollars
What happened to Frankie Forman? He does an excellent show and seemed like he worked well with Pat.
Not science too many changes almost 1000$ of extras or more you changed heads and lifters with minimal increase science would be to see same setup versus different stroke then increments not spending thousands to have marginal change
You guys always make top shelf videos. Thank you.
Nice 305. Not a budget build, but nice. HP costs $$$.
If you can't build hp from a small block you can't build performance engines
First took a 305 and maybe over 600hp
Chevy sucks
I'm surprised at the results. Never thought a 305 could be that impressive. There is one other engine that was commonly used in the 80's, and that was the olds 307. Yes I know the bottom end is a windowed main. But it would be interesting if a build could with today's know-how would bring it up to respectability. A lot of Regals and Cutlasses have this engine and they are very popular today. Maybe help us owners of this G-body out? What say you folks at Power Nation???
I own a 1991 Civic DX hatch with a B20B motor swap and 91 Acura RSX 5 speed manual. That thing is a beast and is very reliable.
I also own a Beautiful 2011 Si Sedan Civic with super low miles. It's all original and is awesome. I also have a 2004 Civic Si hatch known as the EP3. It's totally tricked out with suspension, brakes and turbo charged. I super fun car.
And I recently picked up a brand new 2024 Civic Sport 5 door hatch. I purchased it because it has the K20 motor in it. But to be honest I expect more problems with it than all the older Hondas I own. The Civic Sport has that CVT automatic transmission in it. So I expect that to break first. But once again. I can easily swap the 6 speed manual into this car with a few mods and mount placement. But I will cross that bridge when I get to it.
Truth be known the Honda I enjoy driving the most is the old 1991 Civic with the big 2.0 ltr twin cam motor in it.
Small block 305 putting out 500 HP now that's turning a boat anchor into a hot rod. Drop it in a 2500lb frame and you go a screamon demon