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by ProPower engines
Fri Sep 10, 2021 8:37 pm
Forum: Race Cars & Parts - For Sale or Wanted
Topic: WANTED EDELBROCK CARB
Replies: 1
Views: 97

WANTED EDELBROCK CARB

HEY GUYS, I am desperately looking for a NEW only still in box edelbrock 1803 500 cfm AVS carb This is for a small street project so NO OTHER CARB WILL WORK BUT THE 1803 EDDY CARB, IF you have something as described at the top and want to sell please PM me. CASH WAITING AND WILL PAY FREIGHT FROM LOW...
by ProPower engines
Sat Sep 04, 2021 5:21 pm
Forum: Engine Tech
Topic: 385 compression results
Replies: 12
Views: 762

Re: 385 compression results

I would check the valve lash is not tight on that hole 1st. If it is fine then I would leak down that hole and a 170 lb hole on the same side. One thing comes up is are ALL THE CHAMBERS EXACTLY THE SAME VOLUME??? If that is an un-known factor then any leakage will show on the leak down. A couple cc'...
by ProPower engines
Mon Aug 30, 2021 2:08 am
Forum: Engine Tech
Topic: Stainless Steel Valves
Replies: 5
Views: 556

Re: Stainless Steel Valves

Manley has the best quality valves at this time.
the inconel valves are much more costly but they serve a purpose.
The super duty stainless valves are 2nd to none and decent pricing as well for the quality.
by ProPower engines
Fri Aug 13, 2021 12:19 pm
Forum: Engine Tech
Topic: Ball Hone New Bronze Guides
Replies: 22
Views: 1139

Re: Ball Hone New Bronze Guides

Never said anything about the size being too tight or other. Simply asked a question on Ball Hone finish. Again does anyone have an answer that doesn't assume other? The reason for the ball hone is they ream the guides and that leaves tooling marks. All the ball hone does is attempts to take the hi...
by ProPower engines
Sat Jul 31, 2021 11:58 pm
Forum: Engine Tech
Topic: Piston?
Replies: 28
Views: 1568

Re: Piston?

Opinions on Speedmaster PCE305-1906 pistons. Application is a hobby stock engine on a budget. E-85 fuel 9.8:1 compression/360 cid max....stock crank, eagle SIR rods, stock 350 block..425 hp/torque or less 2 bbl rochester -2701 edelbrock intake, Dart SS or 993/487 GM heads(no porting allowed) -jones...
by ProPower engines
Tue Jul 27, 2021 7:17 pm
Forum: Engine Tech
Topic: LS 3 liner OD gaps
Replies: 8
Views: 612

Re: LS 3 liner OD gaps

If the sleeves are below the block surface its a good chance they have moved down. Check the bottom of the block and see if the step has been damaged to allow the sleeves to fall. If the step is still there then deck the block again and carry on. Some times it happens and in a stock situation goes u...
by ProPower engines
Tue Jul 27, 2021 7:11 pm
Forum: Engine Tech
Topic: Burning Oil w/New Motor - Can't Diagnose
Replies: 20
Views: 1022

Re: Burning Oil w/New Motor - Can't Diagnose

Hi, Fighting an issue with a new motor blue smoking when cold. Motor has approx. 140 miles on it, and approx. :45 more run time in testing and tuning. At startup, get too much blue smoke. Tapers off as motor warms up, then is mild. Oil levels do not reduce noticeably, but clearly seeing blue, not b...
by ProPower engines
Wed Jul 21, 2021 4:09 pm
Forum: Engine Tech
Topic: new spark plug issues.
Replies: 5
Views: 274

Re: new spark plug issues.

Faulty construction of the new plugs. Or too much resistance of the new plugs. I would bet the plugs have too much resistance built into them as newer engines will be OK with the extra resistance but the older engines not so much. Change out the plugs for a different brand but same heat range and tr...
by ProPower engines
Wed Jul 21, 2021 3:59 pm
Forum: Engine Tech
Topic: Comp cams cam cores
Replies: 7
Views: 821

Re: Comp cams cam cores

My understanding is there are only a few core makers anyway. From this, can we infer that isky, comp, bullet, howards, etc are all using the same cores of the same quality from the same manufacturers? Is everyone still sourcing domestically for old FT stuff, or are the larger companies buying offsh...
by ProPower engines
Wed Jul 21, 2021 3:26 pm
Forum: Engine Tech
Topic: new spark plug issues.
Replies: 5
Views: 274

Re: new spark plug issues.

Turns out, the NGK plugs are resistor, not good for a weak magneto system, but the question remains, why do the old plugs fire and the new ones don't? I have seen that before as well. the resistor plugs are much more common today then years ago for 2 stroke engines. The older ignitions did not fire...
by ProPower engines
Tue Jul 20, 2021 2:51 pm
Forum: Engine Tech
Topic: Dart heads?
Replies: 12
Views: 841

Re: Dart heads?

I guess that I am not understanding the point of this milling ... IF the compression ratio allowed is merely 9.5/1 maximum as the rules above say. "LOCAL TRACK" has .5 allowable difference in regards to compression ratio(max 10.0 or under) according to the Whistler box that measure ratio(Katech). I...
by ProPower engines
Mon Jul 19, 2021 8:16 pm
Forum: Engine Tech
Topic: Dart heads?
Replies: 12
Views: 841

Re: Dart heads?

USRA HOBBY stock I gather it's best to get bare heads with no valve jobs straight from the manufacture so valve seats are not sunken and it allows better volume in the runner and behind the intake valve. I plan to go with 1.94/1.50 valves but not sure on valve job to yet. I am needing to surface th...
by ProPower engines
Mon Jul 19, 2021 12:17 pm
Forum: Engine Tech
Topic: Dart heads?
Replies: 12
Views: 841

Re: Dart heads?

These heads are made as a stock replacement head and the amount of material removal suggested on the spec sheet is the same as World products has on theirs. Personally I have taken .020 off on an angle then flat milled 060 off with no issues for a local class that runs that head as a spec head with ...
by ProPower engines
Thu Jul 15, 2021 2:57 am
Forum: Engine Tech
Topic: Suitable sealer for tapered crack repair pins.
Replies: 5
Views: 308

Re: Suitable sealer for tapered crack repair pins.

Many years ago We used a product called Irontite as a sealer for taoered pins for cast iron crack repairs. What products available in Australia are suitable gor this Job now. Thanks in advance. Fluid Weld or green high tension Locktite depending upon the amount of heat the repair will see. X2 I alw...
by ProPower engines
Sun Jul 11, 2021 7:02 am
Forum: Engine Tech
Topic: Bolt Stretch on SCAT Connecting Rods
Replies: 28
Views: 1014

Re: Bolt Stretch on SCAT Connecting Rods

And the other issue that has plagued builders is the bolt lube. When they changed to the current ultra torque lube in the blue pak from the long time used lube in the white pak builders every where seen an increase needed in the torque value to obtain the recommended stretch value of the bolts. We h...