Curious, what vehicle?

 

how heavy is this car

 

I ran 355 it was an old Modified motor from IHRA. I was running a high compression 13 to 1, Miller Rods with Brodex #10 heads 850 carb on Victor Manifold. CORVETTE weight 2100 lbs w driver best run was at Motorplex 86 8.55 1/4.

 

Hit the newbie thread you PHUCKSTICK!!:smt097

 

A friend of mine has a 355 with AFR 210's in a vega that runs 6:10-6:15 in the 1/8th, he's only made one quarter mile pass and it went 9:85

 

not a great pic but it's the only one on my phone.

74 nova mini tubbed 275 radial
Glass hood stripped interior
Ladder bar/coil over

 

Oh, cool. I had a hatchback 73 ss in the 90's.

 

Those heads are more suited to a 4,125" bore. On a 4'' bore the chamber is larger than the bore. I have not seen that mentioned anywhere, but that is the case

 

I went 10:38 at around 3000lbs 357 ci

 

Why not the AFR 220's? I had them on a 355 with a cam similar to this Lunati (40120946) 14:1 and a 1000 cfm Pro Systems carb and it made right at 660 hp.

 

They will be just fine, order them, install them, GO RACE!!

 

Those heads will pick you up a ton.IMO they come with quality springs so going to a roller will be that much easier.

 

I run Brodix track 1 heads and made 595 hp on my 12.5:1 355.

Afr CnC heads will flow enough for you to make 600hp if you port match the intake...I'd use jesel rockers if I used afr heads. But that's me ...

I'd say you could go more than a second faster.

Call Eric at Erson cams... Hell get you the right can for that motor as well ...

Good luck

 

Hate to sound like a broken record. But chad has some nice small bore stuff, as I'm sure others do as well

 

Thanks for all the replies.

I think I have an idea what I'm going to do.

It's going to take me a little while to get it all together.

I'll let you know how it turns out.

I'm excited by reading what others have done with a 355.

 

Sounds like a lot of head for a 355 SBC........
May suffer in the first 330'.

 

My 3100# Camaro with a replica of a 70 z/28 shortblock (using SCAT crank and r5.7" ods) Runs 03 octane pump gas.
Canfield 195 heads and a .539/.558" lift 234/242º dur HYD Roller cam. 4.10's 10x28's, slapper bars, 10"TCI Super Streetfighter (3500 or so flash) footbrake car
runs lower 11's at 119

So I'd say going to AFR 195 Eliminator heads would drop you in to the 10.9 range.
The AFR's flow a little better than the Canfields at those higher lifts.

 

I've got a set of them on my 406 pump gas motor.....excellent quality heads!

 

buy the 245 then 406-434 later...

 

bad advice.....by the time he buys heads and shaft rockers and all the special parts needed , he will have 4 grand tied up ....only to put on a 355. If he thinks his motor is a turd now, go ahead and stick thoses heads on it and see what happens.

My advice, call afr or chad and tell them your combo and have them pick the right head for your motor. I know all about what a wrong size head can do for a motor.

here is a run down of my motor

.040 bore 350=356
forged eagle crank ...5.7 h-beam rods...10.6 mahale pistons
team g single plane intake #7530 out of box
aed 750 carb
Herbert solid roller 287 int...300exh
@ 050...253...266...604...604....106 lobe
195 runner pro-filer heads ...econo port from chad ( speier racing)
2.02/1.60 valves
1.6 hardland roller rockers

This motor had a set of 215 dart platinum heads with 2.05/1.60 valve in them....best it ever ran was 10.62 @ 2850 lbs

Bought a set of 195 runner heads from chad, it was what he choose from my motor, keep in mind I wanted a set of 210 runners, I went ahead and bought the 195 like he said, no other changes to the motor but head swap.

first pass went 10.25 and I have ran a best of 10.16 @131 all on 93 pump gas.

So my advice would be call one of them and have them choose the correct head for you....spent your money only once and be done.

 

I have a set of AFR 210 race ready heads out of the box on my 406 SBC. Just got the engine off of the dyno last week and it made 654HP and 561TQ. I'm very impressed with them, especially since they've never been touched with the exception of a valve job.

 

I ran RHS 200cc heads on my 12:1 358". Solid flat tappet. Holley Strip dominator, holley 950. Went 10.50's on a 26x8.5 @ 2950lbs? Went 8.92 on a 250shot

 

What were the specs on that cam Damon?

 

If I remember correctly, it is 260/266 @ .050, .610/.630? 110 lobe. Ill see if I can find the cam card.

 

The old combo went a best of 11.96@114
3200 pounds
4500 stall, foot braked
4.11 gear, 28 inch tire.
--------------------------------------------------
That's alot of mph for an 11.96 et.... If it was sixty footing good, it would've ran around an 11.65.

 

Keep what you have, SAVE YOUR MONEY. ..then build a 421-434 Dart little M block, forged internals & call Chad or Curtis for top end and cam selection (JMO)

 

3100 lbs 71 Camaro
1970 Z28 clone shortblock 11:1 compression
195cc Canfield heads 65cc chambers, un-ported.
Crane PowerMax HR cam #119841
4777 Holley 650 DP, Vic JR
1.75" Hedman #65104 headers
TCI 3500 stall 10" super Street fighter and a TCI manual VB, 350TH
4.10 spool axles C-clip Eliminators by Strange.
10.5 x 28 M/T slicks
6 point Jegs rooll bar kit
C/E bolt-in Subframe connectors
Homemade slapper bars, stock springs and old shocks.

Goes Mid to low 11's @ 116-119 depending on track prep, temps and air density.
All on 93 octane pump premium.

100 shot would be in the 10's
A bigger cam would be in the 10's
e85 would hit 10's

The AFR's CNC'd or unported are far better than what you have.
A roller cam of the same duration is a lot better than what you have.

 

If the valve size will work with the 4.040 bore size, they'll work, but..
Plan on More converter, More gear. Heavy car..

 

Run Brodix track 1s with a 221 intake port, 2.08 valve, .040 over factory 350 block, compression is around 12.8, 6 inch rod, 260-274 solid roller 110 cl, made 405 at the rear wheels with a 8 inch converter, turbo 400 and a 32 inch tire. strip dominator intake with a box stock 800 holley.

Car weighs 3180 with me in it and runs 7.0s in the eighth at 98 on motor, 6.20s @ 110 on a 125 shot and 5.80s @ 118 on a 250 shot.

I would bet the car would pull harder on motor with the AFR210s though.

 

^^^^^Man that's a TALL tire!
What gear are you running with that combo?