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G3GM 1973 to 1977 A-bodys. Chevelles, Monte Carlos, El Caminos, Laguna, 442, Cutlass, Malibu, GTO, LeMans, Century, Regal, Grand Am, Grand Prix, Sprint, Gran Sport, Can Am, Hurst-olds, and other 73-77 A-bodies


Its Road Captains Fault Blame him

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pila
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G3GM :: G3 Tech :: Engine & Driveline

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Its Road Captains Fault Blame him Empty Its Road Captains Fault Blame him

Post by Limey SE Wed Feb 15, 2017 10:52 pm

So Thanks To Roadcaptain I am doing this ....... 305 Build going to shoot for 320hp on this Build and I would be very happy with that...

Longtube headers (got)
600cfm carb (got)
rpm style mani (got)
2.5" exhaust (got)
305ho Heads (working on deal)
I have almost everything I would Need besides gasket Kit for all the Change ( now I know why I save Parts LOL)

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1977 Chevelle SE x2
One Mild original
one Wild NON original
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Post by bracketchev1221 Thu Feb 16, 2017 6:20 am

Did you get the 416 casting heads too?
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Post by Tom77 Thu Feb 16, 2017 9:50 am

How will you know? Going to dyno when your done?
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Post by Roadcaptain S3 Thu Feb 16, 2017 6:34 pm

Tom77 wrote:How will you know? Going to dyno when your done?

Excellent question.
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Post by Limey SE Thu Feb 16, 2017 7:23 pm

bracketchev1221 wrote:Did you get the 416 casting heads too?

Yes sir #416 heads that are Bolt on ready

___________________________________________
1977 Chevelle SE x2
One Mild original
one Wild NON original
Anthony
Limey SE
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Post by Limey SE Thu Feb 16, 2017 7:24 pm

Roadcaptain S3 wrote:
Tom77 wrote:How will you know? Going to dyno when your done?

Excellent question.

If its in the Budget yes we have one that is real close to me

___________________________________________
1977 Chevelle SE x2
One Mild original
one Wild NON original
Anthony
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Post by fasrnur Thu Feb 16, 2017 8:44 pm

I have a question Limey. I know that 2 1/2" exhaust is what everybody seems to run on their cars, but for the little 305 is it too big? Maybe 2 1/4" would be better? Just wondering is all.
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Post by Limey SE Thu Feb 16, 2017 9:29 pm

not sure I have the 2.5" already BUT sure don't want to use the 2" pipes that are on it Now

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1977 Chevelle SE x2
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one Wild NON original
Anthony
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Post by fasrnur Thu Feb 16, 2017 9:47 pm

Yeah 2" pipes usually have more of a kackel to them. lol
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Post by bracketchev1221 Thu Feb 16, 2017 11:19 pm

Are you replacing the cam?
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Post by pila Thu Feb 16, 2017 11:48 pm

The camshaft selection will be a key in getting all the other goodies to make some power ! Very Happy

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Post by Limey SE Fri Feb 17, 2017 7:11 pm

bracketchev1221 wrote:Are you replacing the cam?

pila wrote:The camshaft selection will be a key in getting all the other goodies to make some power ! Very Happy

#416 Heads are a done deal Thanks To Shirt Buisness And this is The Cam

http://www.lunatipower.com/Product.aspx?id=2325

Voodoo Hydraulic Flat Tappet Cam & Lifter Kit - Chevrolet Small Block 268/276

Hydraulic. The most awesome 268 cam ever produced! Out-powers all others! This High Performance street cam likes 2400 RPM stall, 700 cfm carb, dual plane intake and headers. Makes un-equaled power to 6200 RPM with proper valve springs. If you're looking for a Very Strong cam with great street manners then this cam is it.

Advertised Duration (Int/Exh): 268/276
Duration @ .050 (Int/Exh): 227/233
Gross Valve Lift (Int/Exh): .489/.504
LSA/ICL: 110/106
Valve Lash (Int/Exh): Hyd/Hyd
RPM Range: 1800-6200
Includes: Cam & Lifters

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1977 Chevelle SE x2
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Post by pila Fri Feb 17, 2017 7:47 pm

I assume you have enough compression ratio for that cam ? Duration at .050 looks good....

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Post by Limey SE Fri Feb 17, 2017 7:59 pm

compression will be 9.4 - 1 With new Heads and Cometic Gasket

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one Wild NON original
Anthony
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Post by fasrnur Fri Feb 17, 2017 8:26 pm

That's a stout cam for a little 305 indeed. I assume you'll be using something other than a stock converter Limey? I ran one of these when I had my 305 in my S10. It worked out really nice behind the little motor. Very Happy

http://www.autopartswarehouse.com/shop_parts/torque_converter/chevy/vega.html



http://www.partsgeek.com/m3bp5wv-chevrolet-vega-auto-trans-torque-converter.html?utm_source=bing&utm_medium=ff&utm_content=MP&utm_campaign=PartsGeek+Bing&gb=pp&utm_term=1971-1977+chevrolet+vega+auto+trans+torque+converter+dacco+71-77+chevrolet+auto+trans+torque+converter&ad=11620898036


Last edited by fasrnur on Fri Feb 17, 2017 8:32 pm; edited 1 time in total
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Post by Limey SE Fri Feb 17, 2017 8:30 pm

Yea Searching for 2200 to 2400 Thats recommended for the Cam, stock is around 1600 to 1800 Depending who you ask

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Post by fasrnur Fri Feb 17, 2017 8:33 pm

The Vega converter stalls about 2400 or so. It was a cheap trick used back in the 70's by street racers.
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Post by Limey SE Fri Feb 17, 2017 8:37 pm

Will that Fit my 350th tHough ??

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Post by fasrnur Fri Feb 17, 2017 8:50 pm

Yep. The Vega trannys were TH350 as well. Slip right in. You just have to make sure your flywheel is a dual bolt pattern where the converter bolts up. But I'm sure most all of the flywheels had that feature. I'd bet you have the smaller, 153 tooth flywheel. That's what I had and not sure if I ever saw a 168 tooth flywheel on a 305.
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Post by Limey SE Fri Feb 17, 2017 8:56 pm

Message me On Face book em Dano Please LOL

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one Wild NON original
Anthony
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Post by 73ss Fri Feb 17, 2017 9:08 pm

Limey, I don't think you'l be happy with that cam. Don't forget the smaller the motor the "bigger" the cam will act. I'm not a fan of the 110LSA, kills vacuum, that's me though. You'll also need a minimum of a 3.5 gear out back for that cam.  By comparison, I have a 228/238@ .050, .540 lift, 114 lsa in my 454. I'm very happy with it, 12 1/2~13 inches of vacuum, nice idle, doesn't load up when pulled down in gear, supports the A/C also. Nice aggresive sounding idle, pulls strong to 5700. I had a comp extreme energy in it prior to that, ran it for 2 years, just wasn't happy. stinky idle, noisey, etc. Probably could have got the idle better with a holley HP series carb but didn't want to go that route.
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Post by bracketchev1221 Sat Feb 18, 2017 9:27 am

Most I would go with is
https://m.summitracing.com/parts/lun-10120702

Here is the post from the other 305 build posting on cams

The XE262H-10 comp cam is good, the XE 268 is going to be pushing it in a little engine. Lunati has the 10120701 cam and again, the 10120702 is a little bigger, not as bad as the comp 268 so it may be a possibility
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Post by 73ss Sat Feb 18, 2017 1:23 pm

bracketchev1221 wrote:Most I would go with is
https://m.summitracing.com/parts/lun-10120702

Here is the post from the other 305 build posting on cams

The XE262H-10 comp cam is good, the XE 268 is going to be pushing it in a little engine. Lunati has the 10120701 cam and again, the 10120702 is a little bigger, not as bad as the comp 268 so it may be a possibility

X2.

The point I was wanting to make in the previous post is, The Lunati cam you listed is very similar to what I am running. that's how it behaves in a motor with 150 more cubes and a verified 10.07: 1 CR. Take a look at a factory L-82 vette cam for the 305, might be a good choice. Crane offers them.
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