I know they flow alot better than stock 305 heads and alot of stock 350 heads but worse than the vortecs which flow like 225cfm intake and 17? exhaust. Anyone, thanks.

 

If your talken about S/R Torquer 305's:
@ 28"

Lift Int Ext
.050 31 27
.100 66 56
.150 77 83
.200 123 104
.300 170 123
.400 195 128
.500 200 130
.600 198 130



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Rob
'86 TA 305 TPI

 

Hey R.O.B., where did you get those flow numbers? Do you know what the pressure drop was?

Jason

 

Anybody have the flow specs for the Vortecs?

Jason

 

Hell the Corvette aluminum L98 heads flow better than that and will fit a 305! Especially on the exhaust.

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84 Camaro ZZ4 with HOT cam. 1.88 60' (12.98 @ 105MPH E.T.)
Other Mods: You name it and I have probably changed it.

2001 Dodge Ram Quad Cab 5.9L 4*2

ASE Certified Auto Tech
LIVE AND DIE BY THE ALMIGHTY BOWTIE!

 

Goto www.everythingnova.homestead.com and look for headflow. It was on page 4. I beleave it was at 28" of water.

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Rob
'86 TA 305 TPI

 

Gees that's not as good as I thought, I figured at leat 210intake and 140 exhaust. I need to get in touch with a good Machinist who can port these heads with 2.02intakes/1.6exhaust for use on a 350. Anyone know of one?

 

I went to the site and the flow is listed as 225intake and 170cfm exhaust for S/R torquers. But mine are 58cc chambers not 67cc like the ones listed.

 

Some outfits will sell them pocket ported and/or gasket matched. You shouldn't have too much trouble finding someone to do it.

Oh, do you already have some S/R 305's, and want to put them on a 350? Might also need to do some valve unshrouding with 2.02's, which will increase chamber volume. Also consider 2.00 intakes (at least that's what some Vette people do). Or, just get different heads, intended for a 350.

From my inquiries, it appears the 305's are the S/R design, but they charge the S/R Torquer price for them. I plan on putting my die grinder to work (sweat equity) when my 305's arrive.

One problem with the aluminum Vette heads is no exhaust crossover, therefore no EGR.

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82 Berlinetta, orig V-6 car, now w/86 LG4/TH700R. 2.93 limited slip. Cat-back from '91 GTA, Accel HEI SuperCoil. AMSOIL syn lubes bumper-to-bumper. Daily driver, work-in-progress (LG4 w/LB9 block, ZZ3 cam and intake, WP 305 heads ported & polished, TBD headers & hi-flow cat).
57 Bel Air, my 1st car. 0.030 over 396, Weiand Action+, Edelbrock 1901 Q-Jet, Jacobs Omnipack, 1-3/4" headers, TH400 w/TCI Sat Night Special conv & shift kit, 3.08 10-bolt, AMSOIL syn lubes bumper-to-bumper. Best 15.1 @ 5800' Bandimere. Daily driver while Camaro was being put together.

 

if theyre the regular s/r tourqer then its 170