I know some guys who are bashing the 305, saying its a **** motor, that there are no performance parts for it, that its the worst chevy motor ever made, that it is garbage, that you can't get more than 200HP outta it. Please, help me defend the 305 against these morons.

 

LOL some carbed factory 305s put out over 200 hp, i
remember reading some early L69 road tests from 1983
where the testers estimated that engine put out closer
to 220hp instead of the rated 190 hp,based on the
performance numbers generated by L69 z28s.
Also one of the gearhead magazines-don't remember
which one-car craft,hot rod,etc took a new '82 z28 and
started bolting speed parts onto the original 305-got it
up to about 400 hp until a stock cast piston blew after
several runs at 6800+ rpm.As i remember the car used
a super t-10 4spd with a dana 44 replacing the 10 bolt.

 

Any thing you can bolt on a 350, you can bolt on a 305........as long as its not heads with over 1.96 valves, 2.02 are to big hit the block because bore is so small.they arent the greatest choice for a performance build, but ya gotta dance with the one who brung ya!Here in Va there is a sprit car racing seires that can only run 305's they get some pretty good numbers out ot them. but then again,money makes HP no matter what it is being spent on.....money dosent know cubic inches.....

 

305 aren't as bad as people make them out to be.
Shitty cams, heads, intakes and some fulling systems really made this motor a terrible performance peace. and most people would rather group blame it on the cubic inch rather then the head (no pon-intended) of problem they can and will make power there no questioning that. . . theres some down sides like the bore size, due to that your limited to valve size and going bigger isn't always better with such limited bore size. both 305 and 350's are in every yard and came in many cars and trucks your just better off in the long run to go with a 350 block doller for doller hands down 350 if you plan to build a engine. if you want to be different and build a 305 its been done so it doesn't really prove much theres nothing wrong with building it either, its raced and theres even racing classes that are limited to that motor size. its a very reliable motor in my eyes. hotrod did a 305 build and made 370hp at 6,200 rpms and 350tq at 4,500rpms
on a 305 sbc heres the article http://www.popularhotrodding.com/eng...cks/index.html

 

A 305 is fine provided you build it to rev it to 10K vs. a 350 to 8K vs. a 400 to 6K. There is no replacement for displacement. And the 400 has a broader torque curve than either of them.

Now... add a TC or SC to the 305 and you gain *****-loads of HP/torque and still have very decent MPG albeit you won't see those power gains to said 10K RPM. But... the same goes for the 350... 400... 434 stroker... 454 stroker........

A 434 stroker with twin turbos... yeah baby!!!

 

https://www.thirdgen.org/forums/tpi/...10-second.html

 

Wait a minute. You make a post asking why people keep the V6 in their cars:

https://www.thirdgen.org/forums/v6/5...idiculous.html

And yet you cant understand why people bash the 305's? Uhm... Hypocrite?

 

lol - maybe he "upgraded" to a 305ci V8. . .

 

Also becoming a repetitious thread...... in any case fact of the matter is you can throw "X" number of dollars at the 305 and make 400+HP

on the other hand you can throw the same "x" number of dollars the 350 and make a healthier amount HP than that 305. You would also save yourself the headache of finding the 305 parts, listening to people criticize you (use up good bandwith with flame happy threads) and be better off in the end, with a stronger, larger higher HP motor.

you can build a 305 to outperform a 350, the only difference the value of "x" in the equation tends to double.

Yeah its cute to be the guy with the built 305 cuz your "different" but keep in mind different isnt always better.
nuff said.

 

Where in the fact does two complete different threads does the hypocrisy lie? I asked why guys kept V6s instead of putting in a V8 is all, 305 is still a V8.

And who cares if its a repetitious thread, big deal. 90% of threads on this site are, no one is forcing you to look into the topic either.

And I know the 305 isn't a good as a 350, that a 350 will be a better dollar for dollar, I just wanted help proving that the 305 isn't **** is all.

 

I like my 305. it's the original L69 rebuilt with upgrades. my mechanic that did the engine does a lot of high performance engines and he said we are looking at close to 300 in ours. it's got some power and I like it. drinks gas bad though about 12-13 mpg.

 

http://cgi.ebay.com/ebaymotors/Gress...Q5fAccessories

 

A 350 is always better, but the 305 is one tough little v-8!! They are hard to kill. You see lots of them un-rebuilt with over 200,000 on them. Now, thats value! If you like the 305, then keep it! Bottom line. Do what makes YOU happy and screw what the other guys think. After all, it's your car....

 

Must have upgraded to a 350. . .

There's no need to defend 305's. They're a SBC and respond to typical SBC mods.

What gets hard to defend is spending money on the bottom end. Once you need to pay a machine shop for 305 block/crank work, it's time to look for a 350 builder.

Speaking of tough, I'll try to post pics of my 304k mile (probably more - the speedo was slow) 305 cylinder walls. To the best of my knowledge, never opened up before I took the 416 heads off for a TGO member. I'll get the pictures before it gets hauled to the scrap yard (should be worth $5-$10).

 

Don't worry Special K, I got a similar 'education' when I posted that I was going with a 305.Hey, your money, your ride! I opted for the 305 because that's what the car was originally equipped with.I don't plan on doing any John Force burnouts or 'drifting' on a mall parking lot. I just want a dependable cruiser that I can put 100,000 miles on without a lot of grief.If you want to go the hi-po route that's cool too.Car Craft did a buildup of a 305 several years ago.I think the series was called 'Project Jake'.Good luck with your ride!!

 

Yea a 305s junk compared to a 350 just like a 350s junk compared to a 383 which happens to be junk when compared to a 400 which is owned by a 427 which is the little brother of the 454 but none of that matters cuz theres the 502 and then theres the 502 on steriods also known as the 572. In other words in never ends. No motor is bad the SBC was arguably the best motor ever produced in all its displacement. Granted a 350 will produce more power mod for mod but again a 400 will put the 350 to shame too mod for mod.

 

Nothing wrong with the 305 at all CHP did a build a few years ago on a 305 granted they were saying it had low compression dished pistons but the pics showed the high compression L69 pistons in the engine. I guess they never had a 305 apart to see what dished pistions really are lol. Anyway the 305 is fine its a great engine to have some fun with. CHP got very impressive numbers from vortec heads and a cam change. A base run on the stock engine showed somthing like 220 hp at the crank. It all comes down to using what you have and your goals. I could stay here all day bashing SBC owners because my BBC's are going to make more power at any given time then a 350 383 or 400. Why bother with a SBC they dont perform as well as a bbc especially if you want to have some fun on the street. Yes my bird hasa 350 in it but all my other toys are 454+ powerd.

 

i had the 305 in my bird and it ran great till the starter and freeze plugs went out.. easy fix, swapped to a 350 out of a suburban. good/bad idea not sure but for the price it was worth the buy.

its not rice right!?! an sbc is exactly that, almost everything can be added not everything. headers, power adder, ect. but there is difference in years as far as minor thing like accessories and drive belts, ect. have fun with it do wat you want. i get crapp all the time for not doin this or havin that. but the car will do wat i want and its MY car not theres, let them spend money on wat you dont want..

 

Some pics of this 304k+ 305, verified from VIN it was the original engine. Scrapped the tops of the pistons, no oversize marking. I understand they used Prolong, there was a little oil build-up in it. Note the faint hatch marks visible in the cylinder.

 

i'm disagreeing with some of the above. . .

 

wounder what the rings and all the bearings look like. . .
oil valve looks kinda looking dry there... i wounder if that engine baked you a nice cake in the pickup

 

Here is another example. . .

435HP 390 Ft. Lbs Torque
http://www.schwankeshortblocks.com/C...%20Program.htm
pricey for what you get

but you should see what these sprint 305 guys work off of type "305 sprint car rules" in google. . .

Heres some of the limting rules

NOTE:NO GREY AREAS. If you feel there is a grey area or have ANY questions about the rules at any level, please contact track management


316 max cubic inch limit/ 3.48 max stroke
All engine components must be of ferrous material only. No titanium or ceramics. Engine Block OEM production cast iron 305 Chevrolet ONLY (no aftermarket blocks) . No repositioning, boring, or bushing of cam or lifter bores. Crankshaft OEM production crank or ANY brand of 3.480 stroke w/stock weight. (balancing only no “knifing”)

Connecting Rods Any OEM or aftermarket stock length (5.7”Chevrolet “I” beam rod. ) No billet allowed.

Pistons, Any flat top two or four valve relief allowed. Max “0” deck height (Piston may not protrude above deck surface) Any piston rings.

Valve Train Specs Timing sets - Chain only. No belt or gear drives allowed.

Valve springs straight wound only max seat pressure 120lbs. Must
have 5 full coils

Stamped steel or roller rocker arms allowed. No shaft systems, rev kits, stud girdles, or valve stabilizers allowed.

Flat Tappet only/No Rollers. No “hard face” cams.
Cam drive fuel pump only.

Cylinder heads Cast Iron only, no modifications allowed to the port, bowl, or chamber area. Minimum chamber volume is 64cc for Chevrolet The only stock VORTEC head allowed is the 350 Vortec. Any GM stock head with minimum 64cc chamber is allowed. No grinding, polishing, welding, acid or caustic work, shot peening, glass beading, coating, or other process that will alter the machined surfaces or natural sand cast finish. Heads must be untouched. Comparisons will be made to known legal heads if questions arise. The only exception allowed to this rule will be when media blasting has been used for cleaning purposes only. This determination will be made by the tech inspector(s). Any questionable parts may be presented to track management for inspection prior to assembly to avoid possible issues later.

 

I hate peaky torque. I'd rather have more CID, less cam/RPM, and a nice broad torque curve even though motor hyper-longevity is decreased.

 

I don't know, and never will - it's gone to its final resting place. I do know it didn't use a quart of oil in the ~4000 miles I drove it, and oil pressure was fine.

Do you mean oil "valley"? As in lifter valley? The engine was pulled last February and had been drained and sitting since. I suspect the Prolong gives it that dry look, but I really don't know. The engine spent about 12 hours in the bed of the pickup.

 

yup