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Search found 1211 matches

by Steve.k
Fri Feb 14, 2020 9:59 am
Forum: Engine Tech
Topic: Main bearing clearance
Replies: 26
Views: 937

Re: Main bearing clearance

I second the above?
by Steve.k
Tue Feb 11, 2020 9:32 am
Forum: Engine Tech
Topic: Can u pick up hp
Replies: 14
Views: 788

Re: Can u pick up hp

I believe chris’s head was gen 1. Mine is gen2 being a 2010.
by Steve.k
Mon Feb 10, 2020 10:27 pm
Forum: Engine Tech
Topic: Can u pick up hp
Replies: 14
Views: 788

Re: Can u pick up hp

I talked directly to chris. He is the one that told me the above.on our bench you notice our stock flow no where close to his.
by Steve.k
Mon Feb 10, 2020 9:06 pm
Forum: Engine Tech
Topic: Can u pick up hp
Replies: 14
Views: 788

Re: Can u pick up hp

Well if i was sticking with stock bore it would help to fill ports. However thats not the case. The guy who has pioneered filling ports on these told me porting extremely helps this motor especially with bigger bore. The cams help the midrange alot so im told. Haven’t had to many engines that didn’t...
by Steve.k
Mon Feb 10, 2020 7:00 pm
Forum: Engine Tech
Topic: Can u pick up hp
Replies: 14
Views: 788

Re: Can u pick up hp

And I thought *I* was Master of The Dad... But IIRC those things were underpowered when they came out and didn't get any better as time went on. Being old 4v motorcycle it's almost certain the ports are too large, and the cfm to hp formula says your stock head has enough airflow for 66hp. Modded he...
by Steve.k
Sun Feb 09, 2020 6:09 pm
Forum: Engine Tech
Topic: Can u pick up hp
Replies: 14
Views: 788

Re: Can u pick up hp

I believe the cam is the same just revised the timing. I know another guy who ported same as us only higher flow he made. And added fuel injection for 62hp on regular unleaded. I believe he did hotcam swap also.
by Steve.k
Sun Feb 09, 2020 5:26 pm
Forum: Engine Tech
Topic: Can u pick up hp
Replies: 14
Views: 788

Re: Can u pick up hp

Thanks. I think he means motor sickle. Lol. Yes this is old 650 klr single. Big bore to 705cc. And head work. Open exh up a bit and little carb work. Debating on hot cams also.
by Steve.k
Sun Feb 09, 2020 4:38 pm
Forum: Engine Tech
Topic: Can u pick up hp
Replies: 14
Views: 788

Re: Can u pick up hp

Thanks Bill. Here what we got from head so far. Stock .050-53.8, .100-109.4, .150- 154.4, .200-190.5, .250- 222, .300-246.1, .350-262, .400-264. Mod. .050-55.6, .100-108.5, .150-157.9, .200-201.7, .250-238.2, .300-267.5, .350-286.4,.400-294.4. Stocl port velocity @.350 lift 269.6 modified velocity @...
by Steve.k
Sun Feb 09, 2020 10:58 am
Forum: Engine Tech
Topic: Can u pick up hp
Replies: 14
Views: 788

Can u pick up hp

Can you pick up hp with increased velocity and port work with no cam change or carb size change. Head work alone. Theoretically speaking and assuming head done correctly?Working on 4valve motorcycle engine with limited cam replacement and carbs.
by Steve.k
Sun Feb 09, 2020 10:46 am
Forum: Engine Tech
Topic: Anyone remember the old Holley Street Dominator intake?
Replies: 43
Views: 17570

Re: Anyone remember the old Holley Street Dominator intake?

I have several Street dominator intakes for Clevelands. They can be had cheap and work very well on the 2v head they were designed for. That said the new rpm airgap will put the hurt on them bad but you wont buy them for 50 bucks either.
by Steve.k
Fri Feb 07, 2020 6:37 pm
Forum: Engine Tech
Topic: Why does a tighter lsa need more compression?
Replies: 140
Views: 4626

Re: Why does a tighter lsa need more compression?

The tighter lsa is more often used where theres a lack of oxygen or higher Da where you need to build cylinder pressure quickly. This would also apply to smaller cube higher output engines. In our low oxygen area i typically run 102-106 lobe sep on 351-400 cubes. On the bigger cube engines that do n...
by Steve.k
Wed Feb 05, 2020 8:56 pm
Forum: Engine Tech
Topic: Can I use (stock) Ford 351C HEADS on my Ford 302 ('79) Block
Replies: 31
Views: 9786

Re: Can I use (stock) Ford 351C HEADS on my Ford 302 ('79) Block

The windsor heads return coolant through the intake and not the block like Cleveland. The 351m and 400 blocks are 10.29 deck so you would have to cut if even possible to fit 8.2 302.
by Steve.k
Tue Feb 04, 2020 1:39 pm
Forum: Engine Tech
Topic: Can I use (stock) Ford 351C HEADS on my Ford 302 ('79) Block
Replies: 31
Views: 9786

Re: Can I use (stock) Ford 351C HEADS on my Ford 302 ('79) Block

Yes H.o is correct some good recipes over there. Contrary to popular belief the 4v Cleveland head can and will make good power at lower rpm. And a hell of alot more at high rpm.
by Steve.k
Tue Feb 04, 2020 8:12 am
Forum: Engine Tech
Topic: Can I use (stock) Ford 351C HEADS on my Ford 302 ('79) Block
Replies: 31
Views: 9786

Re: Can I use (stock) Ford 351C HEADS on my Ford 302 ('79) Block

Just wondered if there is a "factory cast iron" intake" that fits these heads? Tim meyer sells trackboss intake to exactly fit this setup. You will need new pistons and also tap and plug front water passage in head. The heads will increase where you make peak tq and hp but will likely net big gains...
by Steve.k
Wed Jan 29, 2020 10:18 am
Forum: Engine Tech
Topic: Valve lift vs. port flow and cam selection
Replies: 86
Views: 3231

Re: Valve lift vs. port flow and cam selection

Oh yes and there’s been a hell of a change in head flow from 1984 till now thats for sure.