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Search found 156 matches

by Lasher...
Fri Nov 07, 2014 6:42 pm
Forum: Engine Tech
Topic: Valve lash questinn
Replies: 36
Views: 2505

Re: Valve lash questinn

Since it was brought up earlier about the 365 HP / 375 HP 327's and the 302 Z28 engines.... these had the infamous so called 30-30 Duntov camshaft in it. When Duntov needed to replace the 097 Duntov solid lifter cam that was used on the HI PO 283's and the 340 / 360 HP 327's..... Chevy allowed the n...
by Lasher...
Sun Oct 26, 2014 4:25 pm
Forum: Engine Tech
Topic: ?'s about cams, mileage, etc...
Replies: 36
Views: 3983

Re: ?'s about cams, mileage, etc...

I'm thinking that ISKY cam card is a misprint saying the Supercams are rated @ .020.... the ones I've had experience with were rated @ either .007 or .008 for their hyd cams.
by Lasher...
Wed Apr 09, 2014 12:00 am
Forum: Engine Tech
Topic: Ported heads,bigger carb for more fuel economy
Replies: 16
Views: 1296

Re: Ported heads,bigger carb for more fuel economy

Gearing and load can have a big impact on fuel economy.....As a real world example a well known west coast Super Gas racer and his buddies were traveling back to Calif from Indy..... 454 crew cab TH 400 and 3.73s pulling trailer and race car.... unknown total weight.....one of the guys noticed some ...
by Lasher...
Sun Sep 08, 2013 2:02 pm
Forum: Engine Tech
Topic: switching from hydraulic to solid cam questions
Replies: 27
Views: 2440

Re: switching from hydraulic to solid cam questions

On my last 327 ( iron Block and Iron Heads ) my cam had a suggested hot lash of .022. I always set them cold and then check to see where it goes when hot. In order for me to achieve the proper .022 hot setting I had to set them @ .024 COLD..... On my last BBC an All Iron 427 the suggested hot lash w...
by Lasher...
Sat Sep 07, 2013 7:35 pm
Forum: Engine Tech
Topic: 427 BB Chevy solid roller camshaft help
Replies: 8
Views: 1469

Re: 427 BB Chevy solid roller camshaft help

A good friend of mine has been using the same cam for nearly 30 years now....it's been in several of his engines and cars both on the street and the drag strip from 427 up to 540 cubes.....will run mid 10's with ease and is super easy on parts.....doesn't kill lifters or require 1,000 lb springs or ...
by Lasher...
Sat Aug 10, 2013 10:39 am
Forum: Engine Tech
Topic: 426 HEMI STOCK AFB JETTING
Replies: 8
Views: 2356

Re: 426 HEMI STOCK AFB JETTING

I am looking at my old 1979 Carter Performance Catalog and here is what it says: AFB -4430 Rod # 16-341 two step .0685 / .059 , Pri Jet 120-389 , Sec Jet # 120-380 , Needle & Seat # 25-860. The other carb uses staggered jetting and rods. AFB -4431uses Rods 16-543 two step .069 / .054 on the pump sid...
by Lasher...
Fri Aug 09, 2013 11:24 pm
Forum: Engine Tech
Topic: 426 HEMI STOCK AFB JETTING
Replies: 8
Views: 2356

Re: 426 HEMI STOCK AFB JETTING

Do you know the actual OE carb #'s ?
by Lasher...
Fri Apr 12, 2013 11:09 pm
Forum: Engine Tech
Topic: Recognize these crane cam #'s?
Replies: 20
Views: 2442

Re: Recognize these crane cam #'s?

The " NC " stands for Norton Camomatic.... the type of cam grinder used was an option way back then.
by Lasher...
Wed Apr 03, 2013 8:55 pm
Forum: Engine Tech
Topic: magneto or HEI ? racing engine 8000 rpm
Replies: 8
Views: 1209

Re: magneto or HEI ? racing engine 8000 rpm

Many moons ago a good friend of mine ran a very consistent Comp Eliminator car and ran a Vertex . He tried the then new MSD 7 and MSD Dist in a ABABAB test n tune one sunday.... the end results was the MSD7 was about a hundreth of a sec quicker..... he said the MSD idled a bit better in the pits but...
by Lasher...
Thu Feb 28, 2013 11:56 pm
Forum: Engine Tech
Topic: Intake Manifold finish
Replies: 36
Views: 5672

Re: Intake Manifold finish

Way back in the day Clay Smith wrote about testing the polished port theory on a Flathead Ford ....... when the intake ports were polished the engine lost power over a textured finished when talking about wet flow. He said the exhaust seemed to respond to a smoother finish but that was dry flow........
by Lasher...
Fri Feb 22, 2013 12:24 am
Forum: Engine Tech
Topic: SBC Cam Reccomendation needed
Replies: 3
Views: 375

Re: SBC Cam Reccomendation needed

Given the gears and assuming a 24 to 27" tall tire and a dual exhaust I'd stick with a small single pattern cam on a 108 to 110 LSA.The 264 Isky would Joe mentioned would be great and still work with a stock converter...... I once had a 331 with 3.07's with a 218* cam on a 112 and regretted that and...
by Lasher...
Sat Feb 16, 2013 11:59 pm
Forum: Engine Tech
Topic: Quench clearance
Replies: 37
Views: 4051

Re: Quench clearance

My last 332 SBC had the pistons .019 down the hole and an .015 head gasket with zero problems and steel rods.
by Lasher...
Wed Feb 13, 2013 8:32 am
Forum: Engine Tech
Topic: exhaust reversion question
Replies: 52
Views: 10133

Re: exhaust reversion question

25 some odd years ago a header company ( maybe cyclone ?? , cant remember for sure ) had their " AR " ," Anti Reversion " series of headers with cones like that built into the header flange IIRC......made all sorts of claims....Some people claimed they worked others didn't , still others said you ha...
by Lasher...
Sat Feb 09, 2013 5:39 pm
Forum: Engine Tech
Topic: 1957 283 power pack cam sec's
Replies: 37
Views: 5062

Re: 1957 283 power pack cam sec's

Through out the decades NHRA has changed the rules as what is legal for NHRA " Stock " class....... Lunati , Cam Dynamics , Comp Cams and a couple others offered designs specifically for " NHRA Stock " class.... while at one point they did have to be the same lift and opening and closing points as t...
by Lasher...
Thu Feb 07, 2013 12:35 am
Forum: Engine Tech
Topic: 1957 283 power pack cam sec's
Replies: 37
Views: 5062

Re: 1957 283 power pack cam sec's

PDQ, The following data is taken from a book I have " Muscle Car & Hi Perf Chevy's 265-283........ In the 1st 3 years Chevy had quite a few OE cams for these engines.This article was written in 1963. 265 solid 162 HP lift .336 /.343 valve lift IO 12* IC 54* / EO 52* EC 14* no lash spec given 265 hyd...